I write this in my main program [code] [C,rows,cols,entries] = Matrix('C.txt')[/code] Matrix fuction is in another program Matrix.m and I want to call it.

I get this error :
[code]Undefined function or variable 'Matrix'. Error in (line 19) [C,rows,cols,entries] = Matrix'C.txt')[/code] Can you please tell me how to fix it ?