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MathWorks is the world’s leading developer of technical computing software for engineers and scientists in industry, government, and education

Outsource to expert programmers, designers, writers, translators, marketers, researchers and admin contractors with tested skills.

Quora is a continually improving collection of questions and answers created, edited, and organized by everyone who uses it.

The Math Forum is the comprehensive resource for math education on the Internet. Some features include a K-12 math expert help service, an extensive database of math sites, online resources for teaching and learning math, plus much more.

Interact with other investors and gain additional investment perspective on the Morningstar Discussion Boards.

R news contributed by (~130) R bloggers

R forum. R is a language and environment for statistical computing and graphics. It is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories...

The original community for quantitative finance. Exclusive premium quant, quantitative related content, active forums and jobs board.

Zotero is a powerful, easy-to-use research tool that helps you gather, organize, and analyze sources and then share the results of your research.