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mojo · Senior Joined: 01 Oct 2011 Posts: 2404

Demo:
http://www.fchart.com/

Overview

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.
Basic Features

Operates on all Microsoft Windows operating systems (Win95 and newer)
Solves up to 6,000 simultaneous non-linear equations (12,000 in professional version)
Equations can be entered in any order
Extremely fast computational speed
High accuracy thermodynamic and transport functions for 100's 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
Professional plotting (2-D, contour, and 3-D) with automatic updating
LaTeX, PDF, as well as printed output
Graphical user input/output capabilities with Diagram window

EES Engineering Equation Solver
Portable:
http://www.megaupload.com/?d=6D24BODJ
Comercial
http://www.mediafire.com/?ukh02slnbx79mqd
Academic
http://rapidshare.com/files/342877683/EES__EngnrngEqutnSlvrComrclAcdmcPro8.400DATE.09-01-03.rar