Engineering Equation Solver
SMath Studio
engineeringsuite
PTC Mathcad
fxSolver
EngineeringPaper.xyz
Aspen Plus
Swift Calcs
Smart Objects
Smart ObjectsSMath Studio - Tiny, powerful, free mathematical program with WYSIWYG editor and complete units of measurements support.
engineeringsuite - Program that solves numerically algebraic systems of non-linear, and linear, equations.
PTC Mathcad - PTC Mathcad PTC Mathcad is Engineering Math Software That Allows You to Perform, Analyze, and Share Your Most Vital Calculations.
fxSolver - fxSolver is an free online math solver, equation library, graphing calculator and science/engineering problem helper. To get started, add some formulas, fill in any input variables and press "Solve."
EngineeringPaper.xyz - Online app for engineering calculations. Solves systems of equations, checks and converts units automatically, supports plotting, and allows for the creation of a link to share your work. Free and open source, no registration required.
Aspen Plus - Maximize profits using a plant-wide simulation solution that combines unparalleled accuracy and engineering collaboration with time-saving workflows.