Submatrix. A submatrix of a matrix is obtained by deleting any collection of rows and/or columns. For example, from the following 3-by-4 matrix, we can construct a 2-by-3 submatrix by removing row 3 and column 2: The minors and cofactors of a matrix are found by computing the determinant of certain submatrices.

What does submatrix mean?

Submatrix meaning

Filters. (mathematics) A matrix formed by selecting certain rows and columns from a larger matrix.

What are matrices used for?

Matrices can be used to compactly write and work with multiple linear equations, that is, a system of linear equations. Matrices and matrix multiplication reveal their essential features when related to linear transformations, also known as linear maps.