Question

求A的逆矩阵我算不出来这个,数太大了,又没有相关软件~·呵呵呵呵,7 2077.8 650083.3A= 2077.8

Answer 1

In[3]=Inverse[( {

{7,2077.8,650083.3},

{2077.8,650083.3,213307917.894},

{650083.3,213307917.894,72908170827.4}

} )]

Out[3]={{68.7008,-0.464523,0.000746491},{-0.464523,

0.00317935,-5.15993*10^-6},{0.000746491,-5.15993*10^-6,

8.4541*10^-9}}