Linear Solver Lite
Use Linear Solver to solve every system of linear equation.
No matter whether overdetermined, underdetermined or with one unique solution.
Linear Solver is designed for school, business and private use, as well.
Version features:
Lite - 3 unknowns - 2 decimal places
Basic - 4 unknowns - 3 decimal places
Pro - 5 unknowns - 4 decimal places