LinearAlgebraReviewandReference
2 Matrix Multiplication The product of two matrices A ∈ Rm×n and B ∈ Rn×p is the matrix C = AB ∈ Rm×p, where Cij = Xn k=1 AikBkj. Note that in order for the matrix product to exist, the number of columns in A must equal the number of rows in B. There are many ways of looking at matrix multiplication, and we’ll start by examining a ...
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