A = {{8 - 8 I, -2 - 2 I, 4}, {8 - 41 I, -2 - 12 I, 54}, {5 - 8 I, -51 - 2 I, 12}}; b = {{-12 + 13 I}, {11 + 2 I}, {3 + 4 I}}; Inverse[A].b
Thanks, but it didn't help me.
As I wrote, the problem appears when I place complex numbers to the matrix, that you named as B.
I want to multiply two matrices that, both contain complex numbers.
A = {{8 - 8 I, -2 - 2 I, 4}, {8 - 41 I, -2 - 12 I, 54}, {5 - 8 I, -51 - 2 I, 12}}; b = {{-12}, {11}, {3}}; Inverse[A].b