Practical Uses of Matrix Mathematics
My thanks to an alert reader for asking, “What are the practical use of matrices …
Cross Multiply to Solve Equations with Fractions
Fractions aren’t as hard as you think. If you want to learn how to solve …
Winning Powerball Tickets in Arizona and Missouri: How to Calculate the (Slim) Odds
The winning Powerball tickets were sold in Arizona and Missouri – if you didn’t win, …
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Introducing the Factorial: the Exclamation Mark of Math
What is a “factorial,” and how is it used in mathematics? The Mathematical Definition of …
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Introducing Math Symbols for Union and Intersection
Our reader’s question is: “There are two sets of symbols for ‘union’ and ‘intersection’. One …
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