(B *Matrix)
| 102 | } |
| 103 | |
| 104 | func (A *Matrix) substract(B *Matrix) error { |
| 105 | if A.cols != B.cols && A.rows != B.rows { |
| 106 | return errors.New("Wrong input sizes") |
| 107 | } |
| 108 | for i := 0; i < A.rows; i++ { |
| 109 | for j := 0; j < A.cols; j++ { |
| 110 | A.SetElm(i, j, A.GetElm(i, j)-B.GetElm(i, j)) |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | return nil |
| 115 | } |
| 116 | |
| 117 | func (A *Matrix) scale(a float64) { |
| 118 | for i := 0; i < A.rows; i++ { |