Method trace

data-structures/matrix/matrix.go:83–89

()

}

func (A *Matrix) trace() float64 {
	var tr float64 = 0
	for i := 0; i < A.cols; i++ {
		tr += A.GetElm(i, i)
	}
	return tr
}

func (A *Matrix) add(B *Matrix) error {
	if A.cols != B.cols && A.rows != B.rows {