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PUBLIC MARKS with tag matematica

February 2007

May 2006 -- Calculators, Lessons, and Worksheets

by acarranca is a collection of lessons, calculators, and worksheets created to assist students and teachers of algebra.

Random Number Generation

by acarranca & 1 other
Have you ever used rand() or Math.Random() or System.Random or java.util.Random? You could do a lot better. Did you know that these use one of the slowest and least random algorithms available? In this article, I provide C/C++, Java, and C# implementations of two fast, high-quality random number generators, the Mersenne Twister and R250/521

What is Chaos? An Interactive Online Course for Everyone

by acarranca & 2 others
What is Chaos? a five-part online course for everyone :: Math is an attitude

by acarranca & 1 other
Want to learn how to quickly square a number that ends in 5? Or how to tell if a number is divisible by 3? Or maybe you'd like to know why the number 153 in the Bible is such an interesting number? That's the kind of fun and fascinating math tricks and trivia you'll find here at

April 2006

March 2006

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