Engineering Equation Solver


EES is a general equation solver that can solve thousands of coupled non-linear algebraic and differential equations. EES includes a library of thermodynamic and transport properties for hundreds of substances. View a short YouTube video to see the unique features in EES.


Engineering Calculations

Solve complex systems of equations without tedious manual iteration or algebra while ensuring unit consistency.

Parametric Studies

Easily carry out design studies and visualize the results in publication quality plots.

Optimization

Powerful native optimization techniques can be used to carry out multidimensional, constrained optimizations.

Uncertainty Analysis

Easily assign uncertainty to measured variables and propagate these through your calculations.

Macro Control

EES commands can be scripted using the native Macro language in order to automate tedious tasks or integrate EES with other programs.

Differential Equations

Native numerical integration capabilities make it easy to numerically solve systems of ODEs.

Thermodynamic Properties

Easily access high accuracy property routines for 1000's of fluids.

Extensive Libraries

Libraries of built-in functions make it easy to quickly create models of thermal-fluid and mechanical systems.

Distributable Applications

Easily generate GUI's to package your EES simulations and distribute them to your user base.

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