Maxima - Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.
GeoHECRAS - GeoHECRAS speeds up HEC-RAS model creation using AutoCAD and GIS data sources.
Sage Math - Sage is a free open-source mathematics software system licensed under the GPL.
Storm Water Management Model - EPA's Storm Water Management Model (SWMM) was first developed in 1971, and has since undergone...
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
MIKE 11 - MIKE 11 is synonymous with top quality river modelling covering more application areas than any...