Description: Eris Solver is an open-source mathematical computation software for solving equations, derivatives, limits, integrals, matrices, linear algebra, and more. It has a simple interface for typing mathematical expressions and computing solutions.
Type: software
Pricing: Open Source
Description: Reddit is a social news aggregation, web content rating, and discussion website. Registered members submit content to the site such as links, text posts, images, and videos which are then voted up or down by other members.
Type: software
Pricing: Free