Numi App - Numi is a beautiful text calculator for Mac.
DPlot - DPlot graphing software lets scientists and engineers graph, plot, analyze, and manipulate data.
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 .
Portable Python - Minimum bare bones portable python distribution with PyScripter as development environment.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
WinPython - The easiest way to run Python, Spyder with SciPy and friends out of the box on any Windows PC...