Desmos Graphing Calculator for iOS
There was a day when people bought expensive graphing calculators to do their homework or perform complex calculations. If you have an iPhone, you can always use it as a sophisticated calculator. Desmos for iOS is a graphing calculator that can graph, handle tables, and solve statistics, Calculus, and other math problems.
The app can plot polar, Cartesian, or parametric graphs. It lets you input and plot your data. Want to find maximums, minimums, or points of intersection? No problem. Desmos is smart enough to solve square roots, logs, and other problems. You can even add sliders to interact with your graphs.
Desmos is a universal app, so it runs well on iPhone and iPad devices. You can try the app for free.