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Celebrating Pi Day 3.14

Updated on January 23, 2015

Celebrate Pi Day - March 14th

Mmmm. Pi Day! The nerdy holiday celebrated by math geeks worldwide. This is the day we gather around to celebrate that amazing little (long) number, pi.

Pi, approximately 3.14159, is the mysterious mathematical constant (number) that represents the ratio of any circle's circumference to its diameter.

Pi has its day, appropriately, on March 14 (3/14). Often a Pi Day celebration will have an extra special event set for pi minute (at 1:59pm). In the UK, Pi Approximation Day is often celebrated on July 22 (22/7) as 22 divided by 7 is an approximation for pi.

This day brings more fun to math classes around the world then anything else (second only to Math League). I wish you a very Happy Pi Day 2013!

Videos From Pi Day - Pi Day Videos From Last Year

This sand art video in particular is absolutely AMAZING!

How Much Pi Do You Know?

How many digits of pi have you memorized?

See results

Amazing Books about Pi

Dive deep into π with one of these great books:

Door Prize!

At your Pi Day party check your guests birthdays on Pi Search. The birthday starting closest to the beginning of pi wins!

About Pi Day

The mathematical constant pi is such an amazing number that it certainly deserves a day of it's own. Pi Day is observed on March 14 each year as the calendar date is 3/14 (in America at least). Special Pi Day celebrations and proclamations are made at exactly 1:59:26 PM which is Pi Second (which falls during Pi Minute!).

Pi Approximation Day is another pi holiday. Pi Approximation Day is usually celebrated on July 22. 22/7 is a rough approximation for pi (and in the European date format that is July 22).

Pi can also be celebrated on the 314th day of the year, which is usually November 10th, but November 9th in leap years.

Pi To The 50th Decimal Silk Tie - by Wild Ties

Pi To The 50th Decimal Green Microfiber Extra Long Tie
Pi To The 50th Decimal Green Microfiber Extra Long Tie

Not for the wanna-bes or the imitators, this necktie is for the true and the proud. This tie is for the nerds. Featured within this grand necktie is the great and almighty symbol of Pi. However, it is behind this symbol where the real intellect lays. It is here that pi is calculated in all its glory to the fiftieth decimal point. Your math teacher may know pi to the fifth decimal and you may even have a friend who knows it to the twelfth, but you are sure to impress them all when you have pi to the fiftieth decimal point. With pi it is all about respect and if you are sporting anything below 25 you may as well go home. And you don't want to go home, so sport your pride and receive the respect you deserve. Your time is now.


Sir Cumference and the Dragon of Pi - by Cindy Neuschwander

Sir Cumference and the Dragon of Pi: The mathematical fairy tale.

Sir Cumference and the Dragon of Pi (A Math Adventure)
Sir Cumference and the Dragon of Pi (A Math Adventure)

When Sir Cumference drinks a potion which turns him into a dragon, his son Radius searches for the magic number known as pi which will restore him to his former shape.


Pi Day Activities - Secant! tangent! cosine! sine! 3.14159! Goooo Pi Day!

Liven up your Pi Day with one of these great activities.

Lose Yourself in the Digits - Pi Day Song

The Pi Song

(This makes great background music for reading the rest of this page)

Pi Day Songs


Happy Pi Day (to tune "Happy Birthday")

Happy Pi Day to you,
Happy Pi Day to you,
Happy Pi Day, Three Point One Four.
Happy Pi Day to you.

We Wish You a Happy Pi Day (to tune "We Wish You a Merry Christmas")

We wish you a happy Pi Day
We wish you a happy Pi Day
We wish you a happy Pi Day
Because math is fun
Pi digits for you
We cannot ignore
Pi digits never ending
Start with three point one four!

More Pi Day Songs

Albert Einstein's Birthday
Albert Einstein's Birthday

Albert Einstein

(Photo of Albert Einstein Impersonating Gene Simmons from Kiss)

Pi Day, March 14,

also happens to be

Albert Einstein's


What to Eat at a Pi Day Party? - Pi Day Foods and Snacks

  • Pie!

    Any pie will do, but if you can put the symbol pi into the crust of say an apple or cherry pi it is even more festive.

  • Pizza!

    A pizza pie is a great add to a Pi Day party. To go all out, put pepperoni on in the shape of pi.

  • Cookies or cupcakes decorated with Pi are great ideas
  • Coffee, pie and donuts

    A mnemonic for C = pi*d is Coffee Pie Donuts

  • Anything else round - It would be best to have all of your refreshments be round to keep the theme going. Donuts, cheerios, M&Ms, ...

More Pi Day Activity Ideas - Things to Do for Pi Day

Here are a few Pi Day activities to make it a great day:

  • Make a paper chain out of 10 different colored papers. Choose one color to correspond with each digit, and see how long you can make it.
  • Pi Rhythm - Assign each of 10 students a digit. Have the digits of pi visible to everyone. Have students pat there legs in a steady rhythm. Have the students call out their digit when it comes up in the rhythm. Whenever a student messes up, they get "dinged". The person with the least "dings" after a set amount of time wins.
  • Compose pi nursery rhymes.
  • Hold a Pi Day Run - Plan a 3.14 mile run. Perhaps you could make it a fundraiser.

Do You Celebrate Pi Day?

See results

Pi Art

Have a decorating contest, where everyone decorates a Pi symbol. Let them know that you want more than just simply coloring it, you want it completely decorated, after all, it's Pi Day, and Pi deserves it.

Pi Quotes

  • "Love is like pi - natural, irrational, and very important." -- Lisa Hoffman
  • "Programming graphics in X is like finding the square root of PI using Roman numerals" --Henry Spencer
  • "So here we have pi squared, which an engineer would call 10." --Frank King
  • "It helps us understand what pi is, not just food." --Robert Toth
  • "Pi is not merely the ubiquitous factor in high school geometry problems; it is stitched across the whole tapestry of mathematics, not just geometry's little corner of it. Pi occupies a key place in trigonometry too. It is intimately related to e, and to imaginary numbers. Pi even shows up in the mathematics of probability." --Robert Kanigel
  • "Exploring pi is like exploring the universe" -David Chudnovsky
  • "Pi is not just a collection of random digits. Pi is a journey; an experience; unless you try to see the natural poetry that exists in pi, you will find it very difficult to learn" --Antranig Basman

400 Digits of Pi

These are the first 400 digits of pi. If you need more, the first 10,000 are listed here.







Mmmm. Do I smell Pi? - A Perfect Gift for Pi Day

As the geekiest cologne on earth, pi is the only thing a true math geek would dream of smelling like on Pi Day!

Givenchy Pi Neo by Givenchy for Men
Givenchy Pi Neo by Givenchy for Men

p = Pi, the 16th letter of the Greek alphabet is today the symbol of the new masculine fragrance by Givenchy. Explore p, explore the universe. Givenchy offers a mystery beyond infinity. The fragrance combines a fresh scent of patchouli and sandalwood.

Ladies, this is a great Pi day gift for that special man in your life!


About Pi

Learn a little more about this mystical number:

How do I Type the Symbol Pi?


& 960;


In a word processing program go to Insert-Special Characters

Celebrate Pi in English Class

Pi Day Beyond Math Class

Can't figure out how to celebrate Pi in your English class? How about writing a story where the number of letters in each consecutive word make up pi? You know...first word 3 letters long, second word 1 letter, third word four letters, ...

For example:


Him, I love. I exist, amazingly. So absent bliss. All alone. ...

Another great idea is to write your own Pi-ku math poem. Who wouldn't love a Pi Haiku?

Which is cooler? - The Pi or e Debate

The age old debate. Which is cooler pi or e?

At your Pi Day Party, hold a mathematical debate. Assign a person to speak for pi and another to speak for e.

Which is cooler?

Pi is cooler

Pi is cooler

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    • anonymous 2 years ago

      all i can say is pi is better. there is something about it that makes it the best part about math.

    • shana273 3 years ago

      Pi is cooler.

    • mermaidsbite 4 years ago

      Pi, although it is pronounced pee, according to my international friend. I like the US, where we pronounce it pie. :)

    • Smurfs LM 4 years ago

      pi rox!:P

    • hovirag 4 years ago

      I know about pi only - so that's my choice

    • Michelllle 4 years ago

      Pi. You can eat it.

    • anonymous 4 years ago


    • floppypoppygift1 4 years ago

      I have never been great at math but Pi day makes me feel like one of the gang! Cheers~cb

    • anonymous 4 years ago

      Pi. Long live Pi!

    • lionmom100 4 years ago

      Pi, definitely Pi...because it works for pumpkin, cherry and lemon meringue too. E does not.

    • smlybright 5 years ago

      So I think I have some studying to do because I know nothing about e.

    • alex89 lm 5 years ago

      I like pi, but mostly because I also like pie. I don't have a problem with e...

    • Michey LM 5 years ago

      They are different thinks... LOL, I like "Pi" as it is so useful in engineering, but I am not against "e"...

    • pencetakuang 5 years ago

      pi day? i just now from you, owh thank the information about that. i very like...

    • virtualboy 5 years ago

      Here's away of remembering the beginning of pi..

      May I have a large container of coffee right now!

      3. 141592654 etc.

    • tomaztt 5 years ago

      interesting number

    • SteveKaye 5 years ago

      You can eat Pie. Or you can yell "eee."

    • mediawizard lm 5 years ago

      pi is my favorite

    • kathysart 5 years ago


    • anonymous 5 years ago

      Enjoy Pi Day with this breakfast pie:

    e is cooler

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      • Tony Bonura 4 years ago from Tickfaw, Louisiana

        OK, I picked e, but I really can't decide. I like them both.


      • anonymous 4 years ago

        e^x = its slope. What more can you say. You think that 100^x expands fast but it can't touch e. e is the best

      • jp1978 6 years ago

        Have I commented in this before? Today e is cooler, which rhymes with Euler. Also, e is more "natural".

      • anonymous 7 years ago

        the derivative of e^x is e^x. that is pretty much magical.

      • anonymous 7 years ago

        i like pie

      • Mary 8 years ago from Chicago area

        I had a college math prof who said that e "flows in the rivers." Sold! :) But my kids dig pi. Whenever they need to fill in a number on Mad Libs, they choose pi. Works great every time.

      • Kate Phizackerl1 8 years ago

        e - after all π is a derivation of e

      • unique freak77 8 years ago

        Pi rocks, but I'm sorry to say that e is way cooler. It's an actual LETTER! And it's more squiggly.

      • anonymous 8 years ago

        e, for sure. the natural log occurs everywhere in nature. it's not reserved to circles alone. Oh, but I have to say, the coolest thing I ever learned in college, was e^i*pi=-1. So, I guess they both pretty much rock.

      • religions7 8 years ago

        e is definitely cooler - for a mathematician (of sorts) like me... Though I'm ashamed to say that I didn't memorize more than three digits of pi - and haven't gotten beyond two for e. e's harder to explain, but that's part of what makes it cool... (and I love logarithms)

      Why pi is cooler than e: - Debate points for pi

      • the value of pi is bigger
      • pi is so special, it only shows under "special symbols" in word processor programs.
      • People confuse Euler's Number (e) with Euler's Constant (gamma). There is no confusion with the one and only pi
      • e is named after a person, but pi stands for itself
      • pi cannot be confused with a hallucinogenic drug
      • pi is tasty
      • Pi Day rocks! No one cares about e Day.

      Why e is cooler than pi: - Debate points for e

      • e is easier to spell than pi
      • e is on a keyboard, but pi is not
      • ln(pi) is an ugly, but ln(e) is 1.
      • e is used in calculus while pi is used in baby geometry
      • 'e' is the most commonly picked vowel in Wheel of Fortune.
      • You don't need to know Greek to be able to use e
      • You can't confuse e with a dessert

      Pumpkin Pi - Math Pi pumpkin - pi jack o'lantern
      Pumpkin Pi - Math Pi pumpkin - pi jack o'lantern

      Pi Jokes

      Mathematician: Pi r squared

      Baker: No! Pie are round, cake cornbread are square!


      A mathematician, a physicist, and an engineer are all given identical rubber balls and told to find the volume. They are given anything they want to measure it, and have all the time they need. The mathematician pulls out a measuring tape and records the circumference. He then divides by two times pi to get the radius, cubes that, multiplies by pi again, and then multiplies by four-thirds and thereby calculates the volume. The physicist gets a bucket of water, places 1.00000 gallons of water in the bucket, drops in the ball, and measures the displacement to six significant figures. And the engineer? He writes down the serial number of the ball, and looks it up.


      In Alaska, where it gets very cold, pi is only 3.00. As you know, everything shrinks in the cold. They call it Eskimo pi.


      What do you get if you divide the circumference of a jack-o-lantern by its diameter?

      Pumpkin pi.


      What do you get when you take the moon and divide its circumference by its diameter? Pi in the sky.


      What do you get if you divide the circumference of a bowl of ice cream by its diameter?

      Pi a'la mode.

      Celebrate Pi Day By Doing What You Love - But Pi Oriented

      What's great about Pi Day, is that you can celebrate it doing whatever it is that you love doing. Everyone can make an amazing Pi Day project!

      • If you love music, play Pi on a piano or instrument of your choice.
      • If you love photography, take your camera to the streets and photograph numbers on buildings and signs in your town and then line them up to Pi. Take single digits, and also try to get some photos of strings of numbers. Then create a display of your photos. Check out this great example: Pi Day to the 36th digit.
      • If you love sports, find photos of athletes wearing their numbered jersey's and line them up to represent Pi. Babe Ruth wore #3. That's a great place to start. Then choose an athlete that wore 1 or 14 and continue for the first however many digits of pi you wish to display.
      • If you like making movies, create a stop action animation using anything...sand, legos, pencils, soda cans, people, anything.
      • If you like acting, write a Pi Day skit and perform it.
      • If you like writing, write a Pi poem, or create a false newspaper that includes fake Pi related stories (complete with ads, classifieds, and obituaries).
      • If you like cooking, bake a Pi Pie. Another food idea is to use a serving dish shaped like a cylinder, half sphere, or even a cone, and prepare something in it, and display the calculations for the volume of that item. For instance, if you make a trifle in a trifle bowl (which is nearly a cylinder), you can calculate volume with this equation.

      Pi (1998) - Starring: Sean Gullette, Mark Margolis

      Pi (artisan)
      Pi (artisan)

      Max Cohen, played by Sean Gullette, is a mathematician searching for the patterns that exist in the world - in nature, science, society, business - everywhere. However in this low-budget black and white psychological drama, Max is not the only one searching for patterns. Everyone seems to be searching for patterns in order to progress their cause - whether financial, religious, or political. And now, Max has dropped deeply into paranoia.

      This is a complex movie, that requires your full attention.

      It's not for the light happy Pi Day celebration, but a great watch at night after all the Pi Day celebrations are over.

      Pi won the Director's Award at the 1998 Sundance Film Festival.

      Funny Pi guy clipart
      Funny Pi guy clipart

      The Punny Pi Guy

      At your Pi Day event, interview a guy with pi symbols stuck all over him. Have all of his answers be pi related - heavy on the puns. It's best when the interviewer gets annoyed at the puns and tries to come up with harder questions (to which Punny Pi Guys always has an answer for).

      For example:

      Q. What's your favorite food?

      A. Pie.

      Q. Other than pie.

      A. Pizza pie.

      Q. Other than pizza pie.

      A. Paella?

      Q. What's you favorite story?

      A. Peter Piper

      Q. What do you want to be when you grow up?

      A. A Pilot.

      Q. Your favorite movie?

      A. Pirates of the Caribbean

      Al G. Bra's Pi Day Video Collection

      This guy truly loves Pi Day, and it shows! If only the whole world had his enthusiasm for math...

      Pi 3.14 in the Bible
      Pi 3.14 in the Bible

      Pi In The Bible

      Is Pi in the Bible? Well, yes, sort of.

      In the description of Solomon's Palace, specifically in the verse I Kings 7:23, the Bible gives the dimensions of a round "molten sea", which is an immense round basin of cast metal. Since it gives enough dimensions, we can work backwards to calculate pi. The Bible says the following:

      And he made a molten sea, ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it about. (KJV)

      The problem that arises is that if you do the math on those figures then pi equals 3, but we know this is not accurate. I believe that since the Bible is not a science book, or a math book, that this error is simply stems from the writer rounding to the nearest cubit.

      Visit this site for more information on Pi In The Bible.

      Pi Symbol Ice Cube Trays
      Pi Symbol Ice Cube Trays

      Pi Symbol Ice Cube Trays

      Frozen H2O Shaped Like Your Favorite Irrational Number

      When hosting the Pi Day soirée at your geek bachelor pad you'll need the proper equipment to ensure success. Square ice cubes just will not do. Round out your party with ice from these super pi ice cube trays

      Also check out the ultimate in Pi Day cocktails...the Pi-Tini.

      Pizza Pi Cutter

      Round pizza pie, round pepperoni. It always made sense to introduce Pi to the meal, and now you can with a Pi Pizza Cutter....a Pizza Pi Cutter. Each Pizza Pi Cutter is two stainless steel blades of cutting power - all harnessed by a space-age plastic Pi. You can fee the power of pi in your hand.

      Comes in your choice of three colors: Black, Red, and Lime. Lime is a fancy way of saying green.

      Buy your own Pizza Pi Cutter

      Here you can wish everyone a Happy Pi Day, share your Pi Day stories and ideas, and ask any Pi questions.

      Pi Day Guestbook

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        • profile image

          thegembank 3 years ago

          you throw every aspect of pi here.. even punny pi joke.

        • profile image

          anonymous 3 years ago

          Coming soon... 3.14... the movie Check us out on imdb.

        • seodress profile image

          seodress 3 years ago

          Super cool lens !

        • shana273 profile image

          shana273 3 years ago

          Wow! I love the Pi T-shirts.

        • Socialpro54 LM profile image

          Socialpro54 LM 4 years ago

          Great lens!

        • Judith Nazarewicz profile image

          Judith Nazarewicz 4 years ago from Victoria, British Columbia, Canada

          What a great lens! Celebrating Pi Day is so unique. I would have never known about Pi if wouldn't have stumbled on your lens. I love it! :-)

        • PinkstonePictures profile image

          PinkstonePictures 4 years ago from Miami Beach, FL

          I love the fact you can celebrate Pi Day with a Pie :-) Great lens and very interesting read. I'll probably return as there was a lot of interesting info here and I've read it quite late and must really go to bed :-D

        • tonybonura profile image

          Tony Bonura 4 years ago from Tickfaw, Louisiana

          I celebrated Pi Day with Pizza.


        • DAEdmonston profile image

          DAEdmonston 4 years ago

          I really liked the Pi T-shirts and the Sir Cumference and the Dragon of Pi book! Thanks for putting it all together!

        • Hairdresser007 profile image

          James Jordan 4 years ago from Burbank, CA

          I love the movie Pi & Life of Pi.

        • hovirag profile image

          hovirag 4 years ago

          @vetochemicals: pie is a good option :)

        • profile image

          miaponzo 4 years ago

          Wheeeeeee .. happy Pi Day!!!!!

        • profile image

          anonymous 4 years ago

          What a wonderful lens!

        • victoria91 lm profile image

          victoria91 lm 4 years ago

          Great lens. It is very informative.

        • sean2099 profile image

          sean2099 4 years ago

          Nice lens, really went all out on Pi.

        • LauraHofman profile image

          Laura Hofman 4 years ago from Naperville, IL

          Cool lens! I learned a lot. Feel like celebrating your ideas!

        • ikrave profile image

          ikrave 4 years ago

          Really fun and informative lens...Happy Pi Day!!!

        • vetochemicals profile image

          Cindy 4 years ago from Pittsburgh Pa

          Happy Pi Day Kab and thanks for the lesson. All I know is today I'll be eating Pie:) xoxo

        • kerbev profile image

          kab 4 years ago from Upstate, NY

          @CuriousBoy: That's pretty sexy.

          I love Euler's identity. I love everything about him.

        • LeenaBK LM profile image

          LeenaBK LM 4 years ago

          Wow....that was a lot of fun and interesting information about Pi and the Pi Day....Happy Pi day to you Kab.

        • floppypoppygift1 profile image

          floppypoppygift1 4 years ago

          This is a tremendously fun lens that mathematicians and the math challenged can both enjoy! Cheers~cb

        • Zodiacimmortal profile image

          Kim 4 years ago from Yonkers, NY

          Wow there's a lot on here. I think I'll be spending PI day reading the page. & love the fun ways to measure Pi

        • Bonfire Designs profile image

          Bonfire Designs 4 years ago

          Math and irrational numbers are all Pi in the sky to me, but always makes sense when I need them to bake a pie! Happy Pi day to all.

        • profile image

          CuriousBoy 4 years ago


        • worldflashpacker profile image

          worldflashpacker 4 years ago

          I feel ready to help my kids with their maths homework now.

        • Paladins profile image

          Paladins 4 years ago

          Excellent, funny, clever lens. Now, go eat some Pi! :-)

        • Dressage Husband profile image

          Stephen J Parkin 4 years ago from Pine Grove, Nova Scotia, Canada

          What a fun Pi lens it is a strange number that never resolves! Wonder if that has anything to do with infinity and the mystery of creation, odd that Pi day fell the day after the new Pope was selected. Wonder if he's into Math too? Odd what it makes you think about. Blessed!

        • Louidam1 LM profile image

          Louidam1 LM 4 years ago

          Happy Pi Day Kab!

        • blackbeltreader profile image

          blackbeltreader 4 years ago

          Nice lense!

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          anonymous 4 years ago

          nice lens

        • evelynsaenz1 profile image

          Evelyn Saenz 4 years ago from Royalton

          Happy Pi Day! :)

        • Silwen LM profile image

          Silwen LM 4 years ago

          Nice. I loved that joke about mathematician, physicist and engineer. There is so much true in the joke. Happy Pi day!

        • kerbev profile image

          kab 4 years ago from Upstate, NY

          @birthdaybluepri: I love it! Sounds like a fun party.

        • birthdaybluepri profile image

          birthdaybluepri 4 years ago

          How about celebrating a Pi birthday? Just went to a friend's 31.419th birthday party. Great Lens.

        • kerbev profile image

          kab 4 years ago from Upstate, NY

          @anonymous: Ha Ha!

        • profile image

          anonymous 4 years ago

          Why is "pi" Buzz Lightyear's favorite food?

          Because it goes "To Infinity and beyond"!

          Why wouldn't the circle go out with the quadrilateral?

          She was afraid he would be a square!

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          kulla 4 years ago

          Highly interesting and fun lens.

        • blackbeltreader profile image

          blackbeltreader 4 years ago

          What fun! Thanks!

        • willybinns lm profile image

          willybinns lm 4 years ago

          I love PI day in school. I always organize a week long celebration for my students!

        • Gypzeerose profile image

          Rose Jones 4 years ago

          Back to look at this fun and thorough lens. I just offered it up as an example of a lens about math - in the Squidoo forum game. This is the first lens that came to mind.

        • profile image

          cmadden 5 years ago


        • physics-boy lm profile image

          physics-boy lm 5 years ago

          Amazing lens, really enjoyed it!

        • Deadicated LM profile image

          Deadicated LM 5 years ago

          I made a Pizza Pi in celebration of Pi Day :)

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          I001l01I02l 5 years ago

          i didn't know there was pi day!(: cool

        • alex89 lm profile image

          alex89 lm 5 years ago

          nice. I celebrate pie day faithfully every year.

        • neuromancer lm profile image

          neuromancer lm 5 years ago

          Haha I never thought about 14.3. as Pi day :)

        • profile image

          brynimagire 5 years ago

          Nice article . Fantastic lens !

        • profile image

          hftm69 5 years ago

          Nice, pi have huge influence in math world.

        • profile image

          VinceErrichiello 5 years ago

          As an absolute math geek, I love this article! Keep them coming!

        • profile image

          iamtreehugger 5 years ago

          Great contents!

        • profile image

          anonymous 5 years ago

          great lens


        • Gypzeerose profile image

          Rose Jones 5 years ago

          Wonderful lens, I spent or misspent a great deal of my morning here, watching the videos and looking at the merchandise. It blows my mind that Einstein's birthday is the same as pi day. I am going to send this to my ex-husband: a mechanical engineering professor. That man needs a good laugh. Angel Blessed.

        • Michey LM profile image

          Michey LM 5 years ago

          Just come back to spread Angel dust on your way


        • Michey LM profile image

          Michey LM 5 years ago

          "Pi" is useful in engenering calculations, astrology, is also a symbol, a logo sometime, or represent our respect for old science..

        • missyjanette profile image

          missyjanette 5 years ago

          great lens for mathematicians!

        • midnightfocus1 profile image

          midnightfocus1 5 years ago

          very nice and interesting lens

        • profile image

          Minoly 5 years ago

          Ha-pi day. Interesting stuff there thx for sharing

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          anonymous 5 years ago

          Pi is 34 sqrt from 8*10^16 also e^3+psi^3+Pi^3+pti^3=(e+psi+Pi+pti)^2

          e is 120 g Pi is 180 g

        • profile image

          anonymous 5 years ago

          Pi is 34 sqrt from 8*10^16 also e^3+psi^3+Pi^3+pti^3=(e+psi+Pi+pti)^2

          e is 120 g Pi is 180 g she is perpendicular

          (2.187628058+i)^2=3.78571652+4.375256116i or e(or Pi)/0.718036285

        • profile image

          addpeople 5 years ago

          Great page!

        • Gayle Dowell profile image

          Gayle Dowell 5 years ago from Kansas

          Great lens, I think I've learned something today!

        • Elyn MacInnis profile image

          Elyn MacInnis 5 years ago from Shanghai, China

          Happy Pi Day! I was so happy to see that Albert Einstein's birthday was 3.14. How incredible is that? Thanks for the information. Your lens is so fun.

        • KimGiancaterino profile image

          KimGiancaterino 5 years ago

          Happy Pi Day ... #1 in Education. That's cause for a celebration! Love the Gene Simmons reference.

        • profile image

          SteveKaye 5 years ago

          I heard that a group of state politicians tried to pass a law requiring that pi = 3.

        • mrducksmrnot profile image

          mrducksmrnot 5 years ago

          Happy pi day and remember this is a leap year.

        • caketech profile image

          caketech 5 years ago

          Cool holiday! I wonder if we have any pi day specials where I live? :)

        • luvmyludwig lm profile image

          luvmyludwig lm 5 years ago

          happy pi day. we had $3.14 pizzas at Your Pie to celebrate...great special for today. :)

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          mediawizard lm 5 years ago

          Happy Pi day and yes happy payday on Squidoo!

        • rob-hemphill profile image

          Rob Hemphill 5 years ago from Ireland

          Such a cool lens, and really interesting - Happy Pi Day!

        • Lauriej1 profile image

          Lauriej1 5 years ago

          Great lens! Happy pi day!

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          anonymous 5 years ago

          This Squidoo Angel wishes everyone a very Happy Pi Day!

        • Zodiacimmortal profile image

          Kim 5 years ago from Yonkers, NY

          Cool & interesting lens, I've added it to the holiday section of my favorite lenses lens

        • kathysart profile image

          kathysart 5 years ago

          Wow how INVENTIVE this lens is!! Blessed

        • profile image

          miaponzo 5 years ago

          Wow! I love pi :) hehehe Blessed!

        • profile image

          anonymous 5 years ago

          make a pi flower

        • profile image

          anonymous 5 years ago

          Happy Pi day to everyone! Excellent lens!

        • kerbev profile image

          kab 5 years ago from Upstate, NY

          @RCGraphicsDesign: You don't have to....but you'll want to!

        • RCGraphicsDesign profile image

          RCGraphicsDesign 5 years ago

          Really impressive. Do you have to exchange presents for Pi Day? :-) Great lens.

        • mommafox profile image

          mommafox 5 years ago

          Happy Pi Day! I'll be singing those tunes all day and celebrating with PIE!

        • Camden1 profile image

          Camden1 5 years ago

          I thought yesterday was Pi day, so I sent the kids little pies in their lunches and was all ready to bake a pie for dessert when my son pointed out that yesterday was actually the 13th. So it's apple pie for dessert tonight!

        • duslan profile image

          duslan 5 years ago

          Nice lens. For the first time in my life, I am wishing I was a middle school teacher so I could share all of this cool pi stuff with my students!

        • BestRatedStuff profile image

          BestRatedStuff 5 years ago

          Great lens. I've never heard for P day before. This lens was worth of reading!

        • ferginarg lm profile image

          ferginarg lm 5 years ago

          Pi ice cubes, and I thought I'd seen everything! haha, Happy Pi day, I might just go and eat some, a savory one though none of that sweet pie my dear North Americans eat haha.

        • profile image

          lensesbyjames 5 years ago

          This is a great lens and took a lot of thought and it really works.

        • profile image

          7thStone 5 years ago

          Excellent lens ... but for the voting you needed one more option "No, but I will now" :)

        • GypsyOwl profile image

          Deb Bryan 5 years ago from Chico California

          Happy Pi Day! Thanks for such a great page with everything I ever wanted to know about Pi ;-)

        • profile image

          Mahadihbk 5 years ago

          Great lens. Feeling happy to wish everyone a Happy Pi Day through this lens

        • profile image

          anonymous 5 years ago

          I've never heard for P day before.

        • Ram Ramakrishnan profile image

          Ram Ramakrishnan 5 years ago

          Inherently a very nice guy,

          he must be, this enigmatic Pi;

          Never get to know him fully,

          even if you earnestly try.

          Simple enough for a child to use,

          Yet could pick Einsteinâs brain.

          Moves about with ease, does he,

          Sporting his endless digit-train.

        • profile image

          zvous 5 years ago

          Pi Day!!!!!

        • profile image

          anonymous 5 years ago

        • CNelson01 profile image

          Chuck Nelson 5 years ago from California

          Where have I been all these years? I've never been invited to a pi party and I don't own a pi tie. Interesting and well done!

        • JJNW profile image

          JJNW 5 years ago from USA

          It's almost here! It's almost here! YAY for Pi Day! (must go plan party!!!)

        • profile image

          anonymous 5 years ago

          Sweet lens. Totally liked it. And I learned a lot from it. Just think about people in the past having Pi defined as "3" or "4" for the sake of laziness :-)

        • profile image

          anonymous 5 years ago

          This lens was worth of reading! Well done ;)

        • profile image

          Arc4life 5 years ago

          Cool Lens....

        • MGuberti profile image

          MGuberti 5 years ago

          Pi Day is near!

        • goo2eyes lm profile image

          goo2eyes lm 5 years ago

          blessings for the mathematical geniuses.

        • profile image

          MegapixelIdeas 5 years ago

          Wow, I never knew that there was so much to pi day!

        • julescorriere profile image

          Jules Corriere 5 years ago from Jonesborough TN

          Excellent Lens! My cousins are planning a Pi Day party, and are collecting lots of "pie" recipes. Thanks for a great read. Blessed.

        • profile image

          anonymous 5 years ago

          wow, this is great information!!! Thank you for writing this :)

        • profile image

          VillaDejaBlue 5 years ago

          Nice lens.

        • davenjilli lm profile image

          davenjilli lm 5 years ago

          What a wonderful lens about pi - who knew so much fun could be had with math? *blessed*

        • profile image

          Pangionedevelopers 5 years ago

          great info source

        • Aquavel profile image

          Aquavel 5 years ago

          Whoops! Just realize I was getting Pi mixed up with the Golden Section (Mean). I now realize there is a difference (For one, the number is slightly different) but there's a relationship too. I'm off to research it! By the way, this is an awesome lens!

        • Aquavel profile image

          Aquavel 5 years ago

          Didn't know there was a Pi day. I'm going to celebrate this year by rewatching the first episode of the new cable TV show "Touch." (The next episode isn't until March 19th). Also I'm going to learn 8 digits of Pi, be appreciative of the nautilus shell on my bathroom counter, and maybe make some new fractal art. And perhaps I'll have pie for breakfast.

        • profile image

          jimmyworldstar 5 years ago

          I'd celebrate by eating a pie or a pizza pie. I'm not too big on math but it's interesting in the realm of mathematics.

        • Blackspaniel1 profile image

          Blackspaniel1 5 years ago

          Nice lens,

        • Countryluthier profile image

          E L Seaton 5 years ago from Virginia

          I like having my Pi, pity I can't eat it too! Oh the rap was off the pi chain!

        • ananimoss2 profile image

          ananimoss2 5 years ago

          This was very fun and interesting lens!

        • EvaVarga profile image

          Eva Varga 5 years ago from NorCal

          What a great lens! Kudos! :)

        • iijuan12 profile image

          iijuan12 5 years ago from Florida

          I featured your great lens on my math curriculum lens:

        • phoenix arizona f profile image

          phoenix arizona f 5 years ago

          I love to eat pie of pi day :)

        • SunShine80 LM profile image

          SunShine80 LM 6 years ago

          Pi is an interesting number. Take each digit in turn and it seemingly gives you a sequence of random digits between 0 and 9. The sequence does indeed pass all the tests for a random number generator. Nobody has yet proved that the sequence is recurring or that any digit between 0 and 9 is more likely to occur than any other..

        • LabKittyDesign profile image

          LabKittyDesign 6 years ago

          Hi Kab - don't know if you've seen this (timestamp says March 23, 2011) but it's pretty slick:

        • profile image

          MelvinR88 6 years ago

          Great lens!!! Very extensive information about pi.

        • tandemonimom lm profile image

          tandemonimom lm 6 years ago

          ** BLESSED ** and featured on Blessed by Tandemonimom!

        • profile image

          anonymous 6 years ago

          A very unique lens; it describes the importance of Pi Day not only in math, but also beyond.

        • stephenteacher profile image

          Stephen Carr 6 years ago from Corona, CA

          Great lens! Happy pi day!

        • profile image

          glowchick 6 years ago

          Very interesting lens, great info on a day that I did not know about.

          Congrats on being chosen LOTD :)

        • profile image

          sugunalinus 6 years ago

          Fantastic lens. You should definitely get some recognition from Squidoo. I would recommend the same.

        • MagpieNest profile image

          MagpieNest 6 years ago

          A lovely bit of geeky celebration of maths!

        • JeremiahStanghini profile image

          JeremiahStanghini 6 years ago

          I remember taking the Pi Day challenge last year and really liking it!

          With Love and Gratitude,


        • Kathryn002 profile image

          Kathryn002 6 years ago

          Excellent. I'll be there next Monday celebrating in Maths class.

        • best-intentions profile image

          best-intentions 6 years ago

          The pizza pi cutter is just too cool! Thanks for putting this lens together. I'll have to share it with my son..they are having a pizza party at his school for pi day. :)

        • LouisaDembul profile image

          LouisaDembul 6 years ago

          We'll all join you on 3/14 at 1.59 pm!

        • iijuan12 profile image

          iijuan12 6 years ago from Florida

          This is such a fun lens! Thank you for all the wonderful ideas and resources you've compiled. I look forward to celebrating pi day with kiddos!

        • GonnaFly profile image

          Jeanette 6 years ago from Australia

          Just returning to say that this lens has been blessed by the maths angel and added to my best maths resources lens.

        • sorana lm profile image

          sorana lm 6 years ago

          This lens is a gem. Brilliant!

        • profile image

          anonymous 6 years ago

          Love this lens! Especially the quotes. Very interesting, even for a mathematically challenged person like me.

        • Gera LM profile image

          Gera LM 6 years ago

          I love the Pi song. We used it at the party of nerds and cool ones.. And you can guess, who was President of the Chess Club...

        • thesuccess2 profile image

          thesuccess2 6 years ago

          I was there when Daniel Tammet broke the European Pi record in Oxford

        • profile image

          bsblmike2 6 years ago

          piiiiiii= 3.14

        • profile image

          scar4 6 years ago

          I didn't even heard of the Pi Day before reading your lens. Very informative. Thumbs up!

        • profile image

          anonymous 6 years ago

          If you what to type Ï on a Mac, just type option-p.

        • LabKittyDesign profile image

          LabKittyDesign 6 years ago

          Some long overdue love for your lens from us, which inspired our Mandlebrot/pi lens. Kudos.

        • paperfacets profile image

          Sherry Venegas 7 years ago from La Verne, CA

          I like the Pi Pies.

        • giacombs-ramirez profile image

          gia combs-ramirez 7 years ago from Montana

          love this lens! So happy I feel like pi in the sky!

        • profile image

          johnsmythelinks 7 years ago

          a cool memorial not to be forgotten of course

        • profile image

          johnsmythelinks 7 years ago

          Interesting and Highly informative in the real sense

        • profile image

          anonymous 7 years ago

          What next, I didn't know about Pi day before Kab. I guess we need something to celebrate and why not pi. When I think about it, that's pretty cool. ~ This is #9 over-all, now that is worth celebrating too. ~ Best wishes!


        • profile image

          JMcG62377 7 years ago

          This is a great lens, always knew what Pi was but never knew it had it's own day. Thanks for all the info. Congrats on top 100.

        • profile image

          anonymous 7 years ago

          Absolutely love this lens! We are celebrating Pi Day too, and have a collection of Pi Day songs that we'd love for people to check out. We're also going to link to this lens on our blog. Happy Pi Day!

        • profile image

          anonymous 7 years ago

          Hi..I'm having a pi day party for my birthday...any suggestions?

        • sorana lm profile image

          sorana lm 7 years ago

          Great lens and great ideas for the coming pi day. Thanks.

        • joanhall profile image

          Joan Hall 7 years ago from Los Angeles

          We love Pi Day! We always get a pie (so glad they're circular!) and talk about circumferences and areas.

          Your lens is superb. We'll be back in March.

        • hlkljgk profile image

          hlkljgk 7 years ago from Western Mass

          as a math teacher, my classes celebrated pi day. :)

        • JenOfChicago LM profile image

          JenOfChicago LM 7 years ago


        • GonnaFly profile image

          Jeanette 8 years ago from Australia

          I never realised there was a pi day! Thanks for the education ;-) 5*

        • puzzlerpaige profile image

          puzzlerpaige 8 years ago

          We love Pi around here. Only learned that there is a Pi Day this year. What a cool lens (specially for math junkies like us). I LOVE those greeting cards.

        • verymary profile image

          Mary 8 years ago from Chicago area

          Can't believe I missed Pi Day! My kids are obsessed with pi, for some reason. Very cool lens. 5*****

        • jtpratt lm profile image

          jtpratt lm 8 years ago

          Wow, you like pi almost as much as I like Free eBay Wordpress Plugins (my latest lens). Please stop by and give it a visit - I rated your lens 5 stars!

        • tandemonimom lm profile image

          tandemonimom lm 8 years ago

          Great Pi! Please join the new Happy Holiday Humor.

        • profile image

          anonymous 8 years ago

          I have featured your lens in my lens => The Music of the Primes - Book Review

          Hope you approve.

        • Kate Phizackerl1 profile image

          Kate Phizackerl1 8 years ago

          ☻ fun!

        • Dee Gallemore profile image

          Dee Gallemore 8 years ago

          Awesome-tastic! (That's 5-Stars, in case you didn't know ;-)

          Thanks for this lenses . . .

        • profile image

          anonymous 8 years ago

          I love "e". But since there is no e-day, your lens is the nearest to celebrate something mathematical. Great lens. 5*'s.

          PS: I came across this equation quite some time ago, but I still haven't been able to digest it. How can two irrational number, an imaginary number and the number 1 cancel each other perfectly?

          1 e**(i*pi) = 0

          PPS: In case you enjoy mathematics, you might want to check out Are you afraid of mathematics?

        • Heather426 profile image

          Heather Burns 8 years ago from Wexford, Ireland

          fun lens, especially for all us math people. 5*

        • profile image

          jura 8 years ago

          great lens

        • profile image

          mikeitloffe 8 years ago

          A Pi Day, such a great idea!

        • RobinForlongePa profile image

          RobinForlongePa 8 years ago

          Thanks for the jokes. The rest is pretty good too. 5 stars.

        • profile image

          Indoor_Jungle 8 years ago

          Wow, cool lens. I knew there was a pi day, but I didn't know this much about it. We use pi in math class.

        • EpicFarms profile image

          EpicFarms 8 years ago

          Fun lens - I'll have to pass it on to our math teachers who celebrate Pi Day faithfully (I like the "pie" part of Pi Day myself :o) 5*


        • AlisonMeacham profile image

          AlisonMeacham 8 years ago

          It is funny as my 10 year old was asking me about Pi yesterday so of course I looked on Squidoo and here you were! Angel Blessings to you for originality and excellent lens crafting as always.

        • Senora M profile image

          Senora M 8 years ago

          That is a pretty cool idea! I didn't even think about it! I'll have to celebrate next year!!

        • profile image

          SpanishMoss 8 years ago

          Love this lens! One of my best friends is a math teacher and every year she has a huge Pi day celebration. The best part is when her students get to "pie" their teachers. Fun stuff!

        • Janet2221 profile image

          Janet2221 8 years ago

          Wonderful lens! 5 *'s and Blessed by a Squid Angel. :)

        • Michey LM profile image

          Michey LM 8 years ago


          Pi is all over on our life, I think 5 stars, is not enough for Pi but, sorry Pi, it is all I can do for you. Oh! favorite, lensroll as well!

          You also have the salute of a mathematician, long life Pi, we will keep you busy!



        • Teddi14 LM profile image

          Teddi14 LM 8 years ago

          Nice job on this. I love pi day because it is my birthday too along with Einstein.

        • MargoPArrowsmith profile image

          MargoPArrowsmith 8 years ago

          Well, I am geeky enough to like this kind of stuff, stars until April 4, 2016!

        • wayfarer lm profile image

          wayfarer lm 8 years ago

          Just when you thought you knew everything there was to know about pi. Wow! Great lens!

        • SusanDeppner profile image

          Susan Deppner 8 years ago from Arkansas USA

          This is an awesome lens! Well done, my friend! Lensrolling to my "Gifts for Geeks" lens and annointing the lens with a blessing.

        • profile image

          lokipro 8 years ago

          This is the best lens EVARRRRRRRRRRRRR! :D Merry Pi Day to all, and to all a good pie!

        • SimilarSam profile image

          Sam 8 years ago from Australia

          I remember doing Pi back at school, of course they left out the good part about their being a Pi Day!

        • profile image

          jipock 8 years ago

          Great Lens!! My mom is a math teacher I will have to get her to read this!! 5*****

        • profile image

          LongStoryShortCrafts 8 years ago

          I love this! I esp. love the pi song - very cool!!


        • SixB profile image

          SixB 8 years ago

          Pi, math and geeks are cool! And I am thrilled to find someone who might actually be interested in my lens which reveals who Erdos really was. :)

        • monarch13 profile image

          monarch13 8 years ago

          Very Cute. 5 Stars and rolled to my "Golden Spiral" lens that is in the spirit of both pi and phi.

        • jimmielanley profile image

          Jimmie Lanley 8 years ago from Memphis, TN, USA

          You're officially blessed!

        • profile image

          anonymous 8 years ago

          Pi Day will now become part of my curriculum!

        • Kiwisoutback profile image

          Kiwisoutback 8 years ago from Massachusetts

          I hate pi, but I love pie. Blueberry, apple, chocolate mousse, key lime, whatever, but was never any good at math. Great work!

        • greenerme profile image

          greenerme 8 years ago

          I didn't know about Pi day, I should've know that, I'm a numbers person! Nice work!

        • bikki lm profile image

          bikki lm 8 years ago

          Cool lens!

        • jp1978 profile image

          jp1978 8 years ago

          Mmm... Pi...

          Sorry, couldn't resist!

        • profile image

          geekytree 8 years ago

          i really am a geeky i love it ... check mine out..

        • RuthCoffee profile image

          RuthCoffee 8 years ago

          You've managed to make Pi almost fun, pure wizardry!

        • profile image

          anonymous 9 years ago

          I LOVE π!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

        • profile image

          akrause2112 9 years ago

          Who knew there was a PI day?? Great addition to the BIG LENSES Group!

        • grassosalvato86 profile image

          grassosalvato86 9 years ago

          Hello!! I like maths! The Pi song is really original!!! Very good lens!!

        • Retro Loco profile image

          Vicki 9 years ago from USA

          There's no way I could have pulled this off! You are so creative, I love it. I never would have thought there could be so many ways to discuss (and celebrate) a little mathematical symbol. Very cool.

        • TriviaChamp profile image

          TriviaChamp 9 years ago

          Fun lens - great job!

        • stephenteacher profile image

          Stephen Carr 9 years ago from Corona, CA

          Great stuff!


        • profile image

          Stephene 9 years ago

          You are very creative.. i like your lense very much.. i hv bookmarked this lense and joined your fan club.. (^o^)

        • TheBookGarden1 profile image

          TheBookGarden1 9 years ago

          Following on, I wonder if any mathematician types out there have experimented with working out pi in bases other than 10? Surely there must be a base that would give pi as a whole number?

        • TheBookGarden1 profile image

          TheBookGarden1 9 years ago

          Sir, I send a rhyme excelling

          In sacred truth and rigid spelling

          Numerical sprites elucidate

          For me the lexicon's full weight

          Count the letters in the words for pi to 20 decimal places easily remembered.

        • evelynsaenz1 profile image

          Evelyn Saenz 9 years ago from Royalton

          White Foot the Wood Mouse says: Sir Cumference and the Dragon of Pi is one of my favorite books. Lensrolled to Hands-On Math.

        • GypsyPirate LM profile image

          GypsyPirate LM 9 years ago


        • Lewister profile image

          Susan 9 years ago from Texas

          You crack me up!! This is an awesome example of what a lens can and should be. Love it!! Sent it to my mom, since she's a math teacher. Had one of those cherry pi t-shirts even.

        • profile image

          happy-jack 9 years ago

          Thank you every so much to share the wonderful day

          of Pi with us. A kindness that will be membered

          through all time, May Obie wan Bless you and

          keep you with the force. Today it is not the kind

          of pie to eat, you must just have 3.14 of them.

          This is the very best work thank you again.

        • profile image

          bdkz 9 years ago

          I love this lens. A Squid Angel Blessing from me too!

        • TonyPayne profile image

          Tony Payne 9 years ago from Southampton, UK

          Nice original lens. I never heard of Pi Day before. Great idea. My favorite is Star Wars Day - can you guess when this is?

        • teamlane profile image

          teamlane 9 years ago

          Got a Pi Squid Angel Blessing from me! ;)

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