cosh
====

hyperbolic cosine



Calling Sequence
~~~~~~~~~~~~~~~~


::

    [t]=cosh(x)




Arguments
~~~~~~~~~

:x,t real or complex vectors/matrices
:



Description
~~~~~~~~~~~

The elements of `t` are the hyperbolic cosine of the corresponding
entries of vector `x`.



Examples
~~~~~~~~


::

    x=[0,1,%i]
    `acosh`_(cosh(x))




See Also
~~~~~~~~


+ `cos`_ cosine function
+ `acosh`_ hyperbolic cosine inverse


.. _acosh: acosh.html
.. _cos: cos.html