Hi Psygorn,

re:
> Dear PILOU, what is the difference between these two?
>
> 1-http://moi.maxsm.net/files/scripts/FxGraph3D.v.1.1.2016.04.17.zip
> 2-http://moi.maxsm.net/files/scripts/FxGraph.v.1.2e.2016.04.17.zip

They are different - FxGraph plots a function curve (parametric function of one parameter) while FxGraph3D plots a surface (parametric function of 2 parameters) .

The latest ones are on Max's file archive page:
http://moi.maxsm.net/files/

- Michael