Synonym for matrix with m rows and n columns, where m ≠ n.
Also a synonym for non-square matrix.
Examples
The matrices A = \(\begin{pmatrix} a & e\\b & f\\c & g\\d & h\end{pmatrix}\) and B = \(\begin{pmatrix} j & k & l\\m & n & o\end{pmatrix}\) are rectangular matrices.