A structural engineering tool used to calculate internal forces and displacements. Based on the finite element method, it can be used to analyze planar frames, continuous beams, trusses, and cantilevers. Its graphical user interface lets youdraw the structure, design load cases and actions, andcalculate results within one single application. It supports true second order theory, solves simple problems quickly, has unlimited undo and redo capabilities, and provides a unit conversion feature. This latest release provides envelopes, new hot-rolled profiles, elements on elastic ground, linear load support, an enhanced solver, and more. Unregistered version allows 40 runs without any restrictions. Afterwards, number of nodes is limited.