.. highlightlang:: us .. _len: len === .. index:: len .. us.tag len ENGLISH :ref:`len` returns the number of elements of its parameter (product from rows and columns). .. function:: nLen = len(m) .. us.return **Return Value** *nLen* is the number of elements of *m* . .. us.params **Parameters** .. uparam:: m *m* is a real, complex or string matrix. .. seealso:: :ref:`nr`, :ref:`nc`, :ref:`strlen` :sub:`id-1457684`