Matrice sfasfAfagdSafgfh

DasGAsDgsAdgSDgSgsfahffffffffffffffffffffffffffffffffffffffffffffffffsddddddddddhe size of a matrix is defined by the number of rows and columns that it contains. A matrix withmrows andncolumns is called anmnmatrix orm-by-nmatrix, whilemandnare called itsdimensions. For example, the matrixAabove is a 32 matrix.Matrices which have a single row are calledrow vectors, and those which have a single column are calledcolumn vectors. A matrix which has the same number of rows and columns is called asquare matrix. A matrix with an infinite number of rows or columns (or both) is called aninfinite matrix. In some contexts, such as computer algebra programs, it is useful to consider a matrix with no rows or no columns, called anempty matrix.