the line 55 fwrite(fid,f_write(i,j),'float32'); is taking crazy long time

how do I improve it (pre-allocating to zeros, vectorization or using parloops or anything)

to make it fast?

%create binary stl file for i = (length(title)+1):80 ftitle(i) = ''; end fwrite(tid, ftitle, 'char+1'); fnumber = length(OriCell. faces) *NumCells; fwrite(tid, fnumber, 'int32'); - - 45 46 - 47 48 - 49 50 51 52 53 54 55 56 57 58 59 60 61 - - for i = 1 : fnumber for j = 1:12 fwrite(tid,f-write(ij), 'float 32'); end fwrite(fid, 0, 'int16'); end fclose(fid)