Gcalctool is the default GNOME desktop calculator.

It has Basic, Advanced, Financial and Scientific modes. Internally it uses multiple precision arithmetic to produce results to a high degree of accuracy.

This release is for GNOME 2.15.1. Even though it's for GNOME 2.15, it should be stable (famous last words).

NOTE: you will need to get the version of intltool from CVS HEAD in order to build this (see bug #337897 for more details).