1.求
| 0.36 | 0.00 | -0.11 | -0.04 | 0.00 |
| -0.03 | 0.82 | -0.09 | -0.39 | 0.00 |
| -0.09 | -0.44 | 1.00 | -0.68 | -0.11 |
| -0.94 | -0.04 | -0.48 | 1.00 | -0.05 |
| -0.30 | -0.56 | -0.33 | -0.01 | 0.94 |
的逆矩阵
2.或根据下表求最后的里昂惕夫逆矩阵(先用每一列除相应行得矩阵A,再用单位矩阵-A得B,求B的逆矩阵)
| mining | steel | engineering | services | transport | ||
| mining | 21 | 0 | 9 | 3 | 0 | 33 |
| steel | 1 | 8 | 7 | 29 | 0 | 45 |
| engineering | 3 | 20 | 0 | 50 | 7 | 80 |
| services | 31 | 2 | 38 | 0 | 3 | 74 |
| transport | 10 | 25 | 26 | 1 | 4 | 66 |


雷达卡





京公网安备 11010802022788号







