polynomial fits curve

Hi,
Working with fits curve, looking for Lib. about polynomial method (2nth degree ) quadratic curve fits.

http://electronbunker.ca/XojoProjects/PolyFit.zip

source : https://forum.xojo.com/50254-just-code-challenge-submissions

[quote=491000:@Jean-Yves Pochez]http://electronbunker.ca/XojoProjects/PolyFit.zip

source : https://forum.xojo.com/50254-just-code-challenge-submissions

[/quote]
I never thought this … realy wonderfull.
I have start to build functions, GaussJordan … .
With this i save lot of time.
Thank you Jean Yves.