abs
===

absolute value, magnitude



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


::

    t=abs(x)




Arguments
~~~~~~~~~

:x real or complex vector or matrix
: :t real vector or matrix
:



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

`abs(x)` is the absolute value of the elements of `x`. When `x` is
complex, `abs(x)` is the complex modulus (magnitude) of the elements
of `x`.



Examples
~~~~~~~~


::

    abs([1,%i,-1,-%i,1+%i])