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86What the Heck are Eigenvalues and Eigenvectors?
There are certain words that will put a speedy end to any dinner conversation. Eigenvalue, eigenvector, and eigenfunction are probably in the top 100 such words. They are used in linear algebra and...
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62What Exactly Is a Subprime Loan
A "popular" explanation of subprime loans Nowadays, everyone is talking about the subprime loan crisis as if the term "subprime loan" is so obviously understood that it needs no further explanation. The...
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59The Story of the Flower Abelia
The Abelia is a genus of shrub that consists of both evergreen and decidious species. The evergreen Abelia are found in warmer environments and the decidous ones are found in colder environments. Species of...
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67The Beginning of Mathematics: Invention of the Proof
All human cultures have number words. Writing as a human invention may have had its origin in the action of record keeping. Ancient bone scratches for example indicate the earliest known form of arithmetic...
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85How to calculate simple statistics
In statistics, the most important calculations are the mean, mode, median, variance, and standard deviation (std dev) In this hub, I will cover the following: sample size population mean mode median ...
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