Description:

wmcalc is a program designed to act as a simple four-function
calculator. It is different from other calculator programs in that it
is designed to take up very little desktop space. As such, it can be
left running on the desktop at all times. It is intended to placed in
the WindowMaker dock but will nicely work with any window manager and
desktop environment that handles dock applications. Various options
can be changed in an easy-to-understand configuration file ".wmcalc",
assumed to reside in your home directory, an example of which being
provided in /usr/share/wmcalc/sample.wmcalc.