dGdx dGdy G main xscale yscale

double dGdx ( double  x, double  y, double  t  ) inline Definition at line 23 of file example-simplexquiver2d.cxx. { x=x/xscale; y=y/yscale; return xscale*cos(y-t)*exp(-(x*x+y*y))*(cos(t+x)-2*x*sin(t+x)); }