File:Fourier transform – Rectangular.svg($file = readdir(DIR)) { $ext = substr($file, length($file)-4); if ($ext eq '.svg') { print("$file\n"); ($pre, $name) = split(" - ", substr($file, 0, length($file)-4));
File:Sonnenstand.pngcoord2angle=function(coord,filterout=TRUE) { diag=sqrt(coord[,1]^2+coord[,2]^2) psi=atan2(coord[,2],coord[,1]) phi=pi/2-atan(coord[,3]/diag) azi=pi/2-psi hoeh=pi/2-phi