Best 2D plot app ever

This app is the best. It can plot all sort of functions in 2D including:
Functions with sum simbol. ( like Fourier series)
Functions defined differently for different domain

Etc
Just try it and I really doubt that you wont be able to plot your 2D truncation.

Most deeply of the unfortunate is that it does not plot 3D graphics.

Please developers, use your talent to make a 3D graphic plot app. I am sure it would also be the best.

Thanks for this app it is really great

SergioPolimante about Desmos Graphing Calculator, v2.2.1