TITLE: What is a good graphing software?
QUESTION [9 upvotes]: What is a good graphing software ? The one that has the ability to accept an equation (linear, quadratic, etc.) from users and output a graph for that equation (software equivalnet of T1-84 graphing calculator).

REPLY [7 votes]: You could also consider Desmos (web-based and free): https://www.desmos.com/calculator