TeleOctave

Click on this link, or look for the public username @STEM_octbot on Telegram — it will appear in contacts search under ‘global results’. You will be able to send messages, without need of any number.

Compute and plot

Type an Octave expression or command and send it. The response will follow shortly, in a message originated automatically from the server.

Make computations, define and use variables, and make plots. 

TeleOctave supports most functions of GNU Octave 4.0.0 and the symbolic, control and ode packages.