Hi people. I´m new here, and want to make an effort for write a plug in. In my case the plug in is very similar to the Whirl. The function is very different. The effect in SciLab is like that: function [xf,yf]=revuelvo(x,y,a) n=max(size(x)); xf=[],yf=[]; for i=1:n r=sqrt(x(i)^2+y(i)^2); alfa=a*atan(...