Translations:FEM Install/2/en

FEM Solver
For solving the system of equations, CalculiX is used. FreeCAD writes a CalculiX input file, starts CalculiX and reads the output of CalculiX. This means CalculiX binary is standalone and independent from FreeCAD. Because of this and since there are more possibilities to get a valid FEM Mesh it is recommended to install the Solver first.