Ump is a program in which all sorts of
calculations can be done, from the simplest to the
more advanced. It handles complex numbers and
matrices of those. The complex numbers are built
up by either floating point values or ratios of
arbitrary sized integers. Ump also draws graphs,
ordinary, polar, and parameter, which is done
through an easy to use user interface. It's also
possible to write your own functions using the
built in editor.