测式数据.txt

用三元组表示稀疏矩阵,可以转置 加法

一组：
|10  0  0 |     |0  0   0 |      |10  0   0|
| 0  0  0 | +   |0  0  -1 | =    | 0  0   8|
|-1  0  0 |     |1  0  -3 |      | 0  0  -3|

二组：
|10   0 |       |0   0 |     |10    0  |
| 0   9 |  -    |0  -1 |  =  | 0   10  |
|-1   0 |       |1  -3 |     |-2    3  |


三组：                     
|4  -3   0   0   1 |     |3  0  0 |     |0  -6   0|
|0   0   0   8   0 | ×  |4  2  0 | =   |8   0   0|
|0   0   1   0   0 |     |0  1  0 |     |0   1   0|
|0   0   0   0  70 |     |1  0  0 |     |0   0   0|
                         |0  0  0 |

四组；
|1   0   1 | -1      |2   -1  -1|
|-1  1   1 |     =   |3   -1  -2|       
|2   1   1 |         |-1   1   1|