Description: Wolfram Alpha is a computational knowledge engine that allows users to get instant expert-level answers to questions on math, science, and many other topics by typing queries in plain language. It understands and computes answers across many domains.
Type: software
Description: Yacas is an open-source computer algebra system written in C++. It can perform symbolic and numerical computations, algebraic manipulations, calculus operations, and more. Yacas has a command line interface and scripting capabilities.
Type: software
Pricing: Open Source