A Computer Algebra System (CAS) app, with built-in chat.
Jasymchat is a Computer Algebra System (CAS) app for math and science students with a built-in chat system for collaboration.
The CAS is based on Jasymca, for doing math and basic programming. It is a good substitute for Matlab for students.
This app is also available on the web at http://jasymchat.com for any device or OS.