问题标题:
求简化阶梯形矩阵13-7-82544-3-7-2-314-12-1513-7-82544-3-7-2-314-12-15
问题描述:
求简化阶梯形矩阵13-7-82544-3-7-2-314-12-15
13-7-8
2544
-3-7-2-3
14-12-15
卢宏涛回答:
r3+r1+r2,r2-2r1,r4-r113-7-80-1182001-5-701-5-7r1-3r3,r2+r3,r4-r31081300131301-5-70000r2*(1/13),r1-8r2,r3+5r210050011010-20000-->1005010-200110000
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