-Lessons in math (derivatives, integrals, trigonometry, geometry, complex numbers).
-Corrected problems with a step-by-step guide to the solution.
-Display the graph associated with a function
-View complex numbers in the complex plane.
minor improvements
![lofi study mix for homework ~ [lofi hip hop] - beats to chill/study/relax screenshot 5](https://i.ytimg.com/vi/AznRJvAPtwM/mqdefault.jpg)
9Apps 4.9
