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Test any number for primality with a single click. It uses a deterministic test and uses the Sieve of Eratophenes logic. Described on The Math Forum @ Drexel. Recommended for Middle School, High School and College, ages 6+. Small application window allows simultaneous use with Word, Outlook, Excel, etc.. Minimizes to tray and pops up when clicked to test for primality. Audio confirmation; beeps high if prime and beeps low if has factors. Free one month trial. Purchase for 99¢ only. Educational discount: 20%.
Primality Tester 5.2.6
Test any number for primality with a single click. It uses a deterministic test and uses the Sieve of Eratophenes logic. Described on The Math Forum @ Drexel. Recommended for Middle School, High School and College, ages 6+. Small application window allows simultaneous use with Word, Outlook, Excel, etc.. Minimizes to tray and pops up when clicked to test for primality. Audio confirmation; beeps high if prime and beeps low if has factors. Free one month trial. Purchase for 99¢ only. Educational discount: 20%.
Matrix Inverse Calculator
This program uses the complicated Gauss-Jordan elimination method to find the inverse of any square matrix. You simply choose your matrix's dimensions, then enter the elements of the matrix you want inverted and press Enter.
Angle Doubling
Middle-School (grades 5 through 9) math program written to provide skills in context. Students write and solve simple algebra problems, then manipulate the vertices of an on-screen triangle so that it matches given information about its angles.
MathAid Trigonometry
Java- and web-based math course includes theoretical concepts, hands-on examples featuring animated graphics and live formulas, problem-solving lessons, and customizable real time tests with solutions and evaluations.
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