I started teaching in 1977, and across my nearly 50 years, I noticed that students were always interested in the history of ...

Over centuries, mathematicians have amassed an array of symbols—from arrows and crosses to shapes derived from letters—to represent complex ideas.

A formula is a rule that links variables and can be written using mathematical symbols. Substitute the given values for the length of one side (12) and the number of sides (5). Follow the formula ...

This action brings up an equation toolbar containing a wide range of mathematical symbols and structures organized into ...