Symbolab

Symbolab is an answer engine developed by EqsQuest Ltd. It is an online service that computes step-by-step solutions to mathematical problems in a range of subjects.
History.
Symbolab was released in late 2011 by three Israelis, Michal Avny (CEO), Adam Arnon (Chief Scientist) and Lev Alyshayev (CTO). They created an engine which can interpret a user-entered equation or symbolic problem and find the solution if it exists. Then they added the ability to show all the steps explaining the calculation. 
Eqsquest started in 2011 as a mathematical semantic search engine. The emphasis gradually drifted towards step-by-step solutions for high school and college-level math problems. Symbolab relies on machine learning algorithms for both search and solution aspects of the engine.
Acquisition.
Eqsquest was acquired by Course Hero in October 2020 