Engineering Equation Solver

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.

How to get the software

Licenses, recipients, request and download methods

  • Annual license
  • The software can be installed on personal PCs or PCs owned by the Politecnico

Request and download

  1. Request the license key via online request form
  2. download the software


Log in with your personal code, preceded by POLIMI\, and relative password. Ex. POLIMI\12345678

In the absence of specific indications, PhD students can use:

  • software intended for students on personal PCs
  • software for teaching staff on departmental PCs

This software is not available for students and for technical and administrative staff.

Educational licenses

The licenses are “educational” editions, the use of the application packages is strictly limited to the University’s institutional activities, thus excluding any use for personal, professional purposes and for profit.