equation-systems topic

A simple but powerful header-only C++ DAE (Differential Algebraic Equation) system solver

dae-cpp

java numerical library for Matrix, Integrals (numerical integration), derivatives (numerical differentiation), equations, ODE, polynomials, etc

sbesada

A powerful string expression evaluator for VBA and LO Basic, which puts more than 100 mathematical, statistical, financial, date-time, logic and text manipulation functions at the user's fingertips.

ws-garcia

R package for the estimation of nonlinear least squares for equation systems

JanMarvin