PyQRS is a tool for calculating probabilities and quantiles associated with a large number of probability distributions. In addition, random samples can be drawn. Quantiles and probabilities are displayed and edited in their natural position relative to the probability (density) graph. This makes PyQRS very easy to use.

The latest version, PyQRS 4.1, is available for the Android, Linux and the Windows platform. Mac users could try to run a Windows version under Wine.

For screenshots see the section Using PyQRS.