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matrix

A rectangular table of numbers, used to organize and solve a system of equations.

A matrix is a rectangular array of numbers arranged in rows and columns. A matrix with m rows and n columns is called an m \times n matrix, and each number in it is called an entry.

Examples

  • \begin{bmatrix} 2 & 3 \\ 1 & -1 \end{bmatrix} is a 2\times2 matrix.

See also

augmented matrix
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