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Tuts+ teaches creative and technical skills across many topics to millions of people worldwide. We offer tutorials, articles, news and insights that help you take your knowledge to the next level.

GraphPad Prism is a powerful combination of biostatistics, curve fitting (nonlinear regression) and scientific graphing in one comprehensive program. Easily organize, analyze and graph repeated experiments; pick appropriate statistical tests and inte...

Sigmaplot Software Inc provides award winning software, services and solutions for statisticians and the entire scientific community.

Makers of best-selling software products Surfer, Grapher, Voxler, MapViewer, Didger, and Strater. Golden Software is the leading provider of scientific graphics software in the world. Our customers include researchers in mining, engineering, and medi...

The National Center for Education Statistics (NCES) collects, analyzes and makes available data related to education in the U.S. and other nations.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Texas Instruments is committed to providing calculators and educational solutions that will enhance student performance in math and science. Your Passion. Our Technology. Student Success.

YouTube is a place to discover, watch, upload and share videos.

Had2Know.com Homepage -- Browse our article categories and index of online calculators. You had to know about...

Explore math with desmos.com, a free online graphing calculator

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.