Graphing calculators Anyone who’s taken classes in geometry, algebra, trigonometry or other advanced math forms has certainly encountered the graphing calculator before. These multi-function … ...

A scientific calculator usually has special buttons for parentheses, trigonometric functions, exponents, inverses and pi -- among other things. A graphing calculator does even more.

Apart from displaying graphs of plotted equations, one of the major innovations of the graphing calculator was the ability to compute the sine, cosine and tangent trigonometric functions.

Apart from displaying graphs of plotted equations, one of the major innovations of the graphing calculator was the ability to compute the sine, cosine and tangent trigonometric functions.

Apart from displaying graphs of plotted equations, one of the major innovations of the graphing calculator was the ability to compute the sine, cosine and tangent trigonometric functions.

Part of that is the way it's taught. Students are taught the "unit circle" and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions. With ...