oct file: multiply a matrix by a vector

[Brian Blais]

Hello,

I was wondering if there is a more efficient way of doing the following
in an oct file.  Many times I want to have a matrix multiplied by a
vector, in a way that each row of the matrix is element-by-element
multiplied by the vector.  I wrote the following, straightforward, code
for it but was wondering if there is a more advised way of doing it.  My
primary interest is in speed, but there may be other reasons to not do
it the way I have written.

                thanks,

                        Brian Blais

int rquotient(Matrix &mat1,Matrix &mat2) {

  Matrix retval;

  if (mat1.cols()!=mat2.cols()) {
    error("Size mismatch");
    return(1);
  }

  for (int i=0; i<mat1.rows(); i++) {
    for (int j=0; j<mat1.cols(); j++) {
      mat1(i,j)/=mat2(j);
    }

  }


  return(0);

}

--
-----------------

            address@hidden
            http://web.bryant.edu/~bblais



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