ThePCGrate®-S(X)v.6.6-6.732/64-bitseriestoolkit,whichisdesignedforexactefficiencymodelingofrelief&phasediffractiongratingsandroughmirrors,combinesthebrilliantperformanceoftheearlierimplementationsofPCGrateswiththemodernGraphicalUserInterfacewith3-D&2-DOpenG