Let A be a square (n n) matrix. We want to compute the matrix B = A ?? At and st

Question

Let A be a square (n n) matrix. We want to compute the matrix B = A ?? At and store this matrix in
A itself. Here At denotes the transpose of the matrix A. Write a function that accepts A and computes B
without using an additional array. You are not allowed to use any extra variables other than two indices i
and j. Assume that ROWDIM and COLDIM are the storage dimensions and n n is the actual dimension of A.
Note that if A = (aij) and B = (bij), then bij = aij ?? aji and bji = aji ?? aij for all indices i; j.

Explanation / Answer

void matFunc ( int A[ROWDIM][COLDIM] , int n ) { int i,j; for (i=0; i

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