GeoGebra

GeoGebra is a complex but all-in-one application package for users that study or work with arithmetic, geometry, algebra, and calculus. This education and reference desktop program is filled with dynamic mathematics software that is suitable for any level of academic needs. 

What is GeoGebra used for?

This academic tool is a rather complicated application that is aimed strictly at those comfortable with difficult math. Speaking of which, the advantage GeoGebra can offer over similar apps is that it provides multiple representations of objects that are all dynamically linked. The idea is to connect geometric, algebraic, and numeric representations in an interactive way. 

Moreover, this can be done with points, vectors, lines, and conic sections also. It allows you to directly enter and manipulate equations as well as coordinates. In return, you will then be able to plot functions, work with sliders to investigate parameters, find symbolic derivatives, and even use powerful commands like Root or Sequence.