In this article, we will demonstrate how to use the graphing feature in the Windows ... You can also plot graphs for trigonometric equations (equations that use sine, cosine, and tan, etc.), ...

everyone in class had a TI graphing calculator. In some ways this was better than a cell phone: If you wanted to play BlockDude instead of doing trig identities, this was much more discrete.

The portable calculator supports exponential and trigonometric functions and many statistical calculations. Users can even save and load formulas to create a formula library. Download the zip file ...