Linked from
The 35 pages that link to Matrix multiplication, each with the reason it gives.
Big O notationRelated: Standard and faster methods have distinct asymptotic time bounds.
Linear mapRelated: Multiplying representing matrices computes the composition of linear maps.
Invertible matrixNarrower topic: Invertibility is defined through matrix multiplication.
LU decompositionRelated: The factors reconstruct the original matrix through matrix multiplication.
Matrix theoryBroader topic: It composes linear transformations and drives much of matrix algebra.