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

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? a five-part online course for everyone

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 CuriousMath.com.

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dpennati

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