SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .

SciDaVis - SciDAVis is a free application for Scientific Data Analysis and Visualization.

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.

GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.

Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.

Matplotlib - matplotlib is a python 2D plotting library which produces publication quality figures in a variety...