GeoGebra CAS Calculator - Free online algebra calculator from GeoGebra: solve equations, expand and factor expressions, find derivatives and integrals
RStudio - RStudio™ is a new integrated development environment (IDE) for R.
Dr. Geo - Dr. Geo, a software to design & manipulate interactive geometric sketches.
Stata - Stata is a software that combines hundreds of different statistical tools into one user interface. Everything from data management to statistical analysis to publication-quality graphics is supported by Stata. Read more about Stata.
Giac/Xcas - Free computer algebra system
JMP - JMP is a data representation tool that empowers the engineers, mathematicians and scientists to explore the any of data visually.