Matrix code make the "&&" to "||", make sure the rows and cols bve the same

[halokid]

}

func (A *Matrix) add(B *Matrix) error {

• if A.cols != B.cols && A.rows != B.rows {
• if A.cols != B.cols || A.rows != B.rows {
  return errors.New("Wrong input sizes")
  }
  for i := 0; i < A.rows; i++ {
  @@ -102,7 +102,7 @@ func (A *Matrix) add(B *Matrix) error {
  }

func (A *Matrix) substract(B *Matrix) error {

• if A.cols != B.cols && A.rows != B.rows {
• if A.cols != B.cols || A.rows != B.rows {
  return errors.New("Wrong input sizes")
  }
  for i := 0; i < A.rows; i++ {