GAUSS is a matrix programming language for mathematics and statistics, developed and marketed by Aptech Systems. Its primary purpose is the solution of numerical problems in statistics, econometrics, time-series, optimization and 2D- and 3D-visualization. It was first published in 1984 for MS-DOS and is available for Linux, macOS and Windows. Examples GAUSS has several Application Modules as well as functions in its Run-Time Library (i.e., functions that come with GAUSS without extra cost) Qprog – Quadratic programming SqpSolvemt – Sequential quadratic programming QNewton - Quasi-Newton unconstrained optimization EQsolve - Nonlinear equations solver GAUSS Applications A range of toolboxes are available for GAUSS at additional cost. See also List of numerical-analysis software Comparison of numerical-analysis software References External links International homepage GAUSS Mailing List Review of version 7.0 Some more links Econometrics software Mathematical optimization software Numerical programming languages Statistical programming languages Proprietary commercial software for Linux