Time Operations
===============

clock
-----

::

  clock

Returns a vector containing the current date and time as ``[year month day hour minute seconds].``


cputime
-------

::

  cputime

Returns the total system CPU time (in seconds) used by the
simulator. The OSX implemementation appears to contain a bug in the
underlying library. This has not yet been fixed.


etime
-----

::

  r = etime(t2, t1)

Returns the elapsed time (in seconds) from the input date vector ``t1``
to ``t2``. The inputs are required to have the form, ``[year month day
hour minute seconds].``