.. highlightlang:: us .. index:: sinh .. _sinh: sinh ==== .. us.tag sinh ENGLISH math-trigo :ref:`sinh` returns the hyperbolic sine of its parameter. .. function:: r = sinh(m) .. us.return **Return Value** *r* is the hyperbolic sine of *m*. .. us.params **Parameters** .. uparam:: m *m* is a real or complex matrix. .. us.comment **Comment** Algorithm: ((exp(x) - exp(-x)) .* 0.5). .. seealso:: :ref:`overview-mathematic`, :ref:`asinh` :sub:`id-75187`