Overview

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EES (pronounced 'ease') is a general equation-solving program that can numerically solve thousands of coupled non-linear algebraic and differential equations. The program can also be used to solve differential and integral equations, do optimization, provide uncertainty analyses, perform linear and non-linear regression, convert units, check unit consistency, and generate publication-quality plots. A major feature of EES is the high accuracy thermodynamic and transport property database that is provided for hundreds of substances in a manner that allows it to be used with the equation solving capability.

• Operates with Microsoft Windows operating systems (10 and 11)
• Solves thousands of non-linear equations
• Equations can be entered in any order
• Fast computational speed
• High accuracy thermodynamic and transport functions for 100's of fluids. View list of fluids
• Unit conversion and automatic unit consistency checking
• Parametric studies with spreadsheet-like table
• Single and multi-variable optimization capability
• Uncertainty analysis and regression capability
• Lookup tables with ability to interpolate user entered data
• String variables and functions to provide string manipulation
• High-quality plotting (2-D, contour, and 3-D) with automatic updating
• Automatic generation of T-s, T-v, T-h, P-v, P-h, P-T and other types of property plots
• LaTeX, PDF, as well as printed output
• Ability to create, save user-written libraries of Functions and Procedures
• Heat transfer library functions for conduction, convection, and radiation

• Student License (single-user and expires after 1 year)
• Single and Multiple-user Commercial and Professional Licenses
• Additional Capabilities of the Professional license
• Academic Site Licenses