If you have read about explicit, geometry-based 3D CAD, you know it is the best approach for creating flexible, lightweight designs. Now, PTC brings you a free download from the CoCreate product family - CoCreate Modeling Personal Edition, a 3D CAD system you can use for assemblies with up to 60 parts. Download a FREE version of CoCreate Modeling Personal Edition today and see how liberating an explicit, geometry-based 3D CAD system can be.

• License: Freeware
• Language: Chinese, ChineseTraditional, German, English, Italian, Japanese, Korean, Russian, Czech, Turkish
• Release: 2008-03-31
• Size: 100 Mb
• Cost: Free

MadCalc is a full featured graphing calculator application for your PC running Windows. With MadCalc you can graph rectangular, parametric, and polar equations. Plot multiple equations at once. Change the colors of graphs and the background. Use the immediate window feature to evaluate complex multivariate expressions.

• License: Shareware
• Language: English
• Release: 2003-02-12
• Size: 387 Kb
• Cost: 10.00 $

Powerful but easy-to-use graphing, curve fitting and calculating software. Graphs Cartesian, polar and parametric functions, graphs of tables, implicit functions, inequalities and slope fields. Up to 100 graphs in one window. Calculus features: regression analysis, intersections, derivatives, tangents, normals and more. The program has printing capabilities, multi-document interface, customizable toolbars.

• License: Shareware
• Language: English, French, German, Italian, Russian, Spanish
• Release: 2005-06-28
• Size: 1 Mb
• Cost: 29.95 $

Parametric driven design, change the dimension, change your design. Can your AutoCAD do like this? AutoPara, a powerful parametric engine for AutoCAD, make you more productive.

• License: Shareware
• Language: English
• Release: 2006-05-24
• Size: 1 Mb
• Cost: 220.00 $

FindGraph is comprehensive, feature-rich graph editor, as well as a curve fitting and digitizing tool for engineers, scientists and graduate students. Convert plots back to X,Y data from any published report for later processing and manipulations. The program offers 12 generic fits, including Linear Regression, Logistic Functions, Fourier approximation, Neural Networks, B-splines curves, plus a library of over 300 industry-specific formulas.

• License: Shareware
• Language: English
• Release: 2007-02-11
• Size: 3 Mb
• Cost: 49.95 $

CD-RUNNER 2006.20 - CD/Multimedia/DVD Player, CD Ripper, Spectrum Analyzer, 15-Band Graphic/Parametric EQ, Internet Streaming Radio, database with online freedb support. Designed to look and operate like real equipment. Includes Music and Media Libraries, much more...

• License: Shareware
• Language: English
• Release: 2006-02-01
• Size: 8 Mb
• Cost: 9.95 $