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84What 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 unfortunately, when they are used, they are...
16 comments
83How 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 variance standard deviation ...
25 comments
68The 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 and accounting. The stars enabled...
19 comments
63The 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...
1 comment
63What 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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