You don't have to be a math nerd to appreciate that value. How to Use Python as a Free Graphing Calculator Plot of a linear equation made with NumPy and Matplotlib, ...

The TI-89, which became available in 1998, let you solve equations with your calculator (just like the TI-92, but you were more likely to be able to use it on tests).

Here are the best graphing calculator apps for Android. If you want something more basic, check out our picks for the best calculator apps, or more advanced features from some of the best math apps.

Graphing calculators have more advanced capabilities for higher-level math than scientific calculators, with larger, more dynamic screens for graphing functions and plotting coordinates.

Statistically speaking, if you’ve held a graphing calculator, it was probably made by Texas Instruments. The TI-89 Titanium continues this legacy with more memory, more pre-installed ...

On Android, consider checking out Graph 89 Free —though you’ll need a .ROM image for it to work (something you can extract from your existing graphing calculator or surely find elsewhere).

These devices can do all of the calculations of a scientific calculator, plus graph equations, make function tables and solve equations.

Graphing calculators include all the functionality of a basic scientific calculator, such as arithmetic and algebraic functions, alongside the capability to graph complex equations.