[pstricks] inverse functions

[Jacques L'helgoualc'h]

Herbert Voss a écrit, mardi 30 septembre 2003, à 06:39 :
> Bhaskaracharya Pratishthana schrieb:
> 
> >To understand it more clearly, I need to know more about atan function 
> >in postscript.
> 
> Alpha=arctan(y/x),  where x|y is a point in the cartesian
> coordinate system.

Unfortunately, atan value is not in [-90;+90], but in [0;180] :-/
-- 
Jacques L'helgoualc'h