GTK desktop calculator
Gcalctool is the default GNOME desktop calculator.

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

Maintainer: Jasper Lievisse Adriaanse <jasper@openbsd.org>,  Antoine Jacoutot <ajacoutot@openbsd.org>

WWW: http://www.gnome.org/
