DESMOS
Desmos is a free online calculator that enables students to explore math in new and more interesting ways. Desmos includes ways that students can create graphs, plot tables of data, evaluate equations, and explore transformations.
MATHEMATICA
Mathematica is a free online program that can solve various mathematical computations. This tool is great to use when creating graph functions which is great for visual learners. This website also allows its users to create 3D graphics!