rCalc is a scientific calculator for the GNOME desktop environment with an innovative list-based user interface. rcalc is a fast and light symbolic calculator for the GNOME desktop environment which aims to occupy the middle ground between simple point-and-click calculators and full featured mathematical packages.

It features two different interfaces: list-based, with extended operations on rows, and terminal-like for simpler calculus. It also offers a GNOME applet where you can type your expression without launching a calculator.