primes
======

primes function



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


::

    [y]=primes(x)




Arguments
~~~~~~~~~

:x real scalar
: :y vector
:



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

Given a real `x`, `primes(x)` returns in a vector `y` all the primes
numbers included between 1 and `x`. If `x<2`then `primes(x)` returns
an empty matrix.



Examples
~~~~~~~~


::

    x=35
    y=primes(x)




See Also
~~~~~~~~


+ `factor`_ factor function


.. _factor: factor.html