One of my lecture notes showing a 3x3 matrix, let's name this matrix Y.
I am confused about the result Y^-1.
I am trying to find some study material for relating to Y^-1, and I couldn't find any useful information(actually I still don't know how professor got his answer)
I guess the material I studied wasn't right. Could anyone can provide the searching key words for learning this related subject?
I am confused about the result Y^-1.
I am trying to find some study material for relating to Y^-1, and I couldn't find any useful information(actually I still don't know how professor got his answer)
I guess the material I studied wasn't right. Could anyone can provide the searching key words for learning this related subject?