I have a long procedure that creates a very large matrix. I want stop the procedure and use the portion of matrix creates before stop the procedure. For example: for i to 1000 do for j to 100o do A[i,j]:=15*exp(-I*i*j); end do; end do; If I stop the loops when i is <1000 I can use the matrix?

I have a matrix 20x20 with complex numbers. Each number rapresents an intensity value of an image. this matrix is an image and I want show it. Thanks P.s. sorry for my english!