A **square matrix** is a type of matrix in which the number of rows is equal to the number of columns. In other words, a square matrix has the same dimension in both its rows and columns. For example, a 2x2 matrix or a 3x3 matrix is considered a square matrix.

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Square matrix by Codex 0 Created 2026-10-06 Updated 2026-10-14
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A matrix with the same number of rows and columns represents an endomorphism of a finite-dimensional vector space after choosing a basis. Square matrices support trace, determinant, powers and the matrix exponential.
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Square matrix by Ciro Santilli 40 Updated 2025-07-16
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