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Visit this site: http://www.1728.org/

Author:1728 Software Systems
Description: Online calculators for solving equations in 2, 3, or 4 unknowns, the Pythagorean theorem, sphere and cylinder area and volume, vector addition, resistors in parallel, chemistry gas laws, compound interest, and loan payments. Games and puzzles include the virtual lottery, mathematical magic trick, and "digitally correct." See also the Ultra Converter (convert length, area, volume, mass, and time).

Levels: High School (9-12)
Languages: English
Resource Types: Calculators, Problems/Puzzles, Web Interactive/Java

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