i have this problem too.when i impelemt it in matlab i am getting the following error
Error in ==> facefind at 1
function [output,count,m,svec]=facefind(x,minf,maxf,dx,dy,sens);
??? Output argument "output" (and maybe others) not assigned during call to
"C:\Users\Prive\Documents\MATLAB\FDMver1.0\facefind.m>facefind".
Error in ==> ex01 at 15
[output,count,m,svec]=facefind(x);%full scan