matlab计算行列式的值
>> a1=[6 2;4 3] a1 = 6 2 4 3 >> >> det(a1) ans = 10 >>
>> a2=[6 2 3;1 3 4;5 7 5] a2 = 6 2 3 1 3 4 5 7 5 >> >> >> det(a2) ans = -72.0000 >>