The Nonlinear Equations MT applications module (NLSYS) solves systems of nonlinear equations where there are as many equations as unknowns. This application is thread-safe and takes advantage of structures found in later versions of GAUSS.


The functions must be continuous and differentiable. You may provide a function for calculating the Jacobian, if desired. Otherwise NLSYS will compute the Jacobian numerically. NLSYS solves a system of nonlinear equations using a quasi-Newton algorithm with Broyden’s secant updated method. You an choose either a line search algorithm or a hookstep method.


Platform: Windows, Mac and Linux.


Requirements: GAUSS/GAUSS Engine/GAUSS Light v8.0 or higher.