Web Cash

I came across this problem on the DigitalPoint forums the other day. How can we write a script to calculate the total number of random combinations in a set (i.e. the binomial coefficient), and how can we generate a list of these combinations?

Today, we’ll tackle the first part. We’ll start with a quick primer on math - what is a binomial coefficient? Then, we’ll look into the most efficient way to calculate that and get the total number of possible combinations.
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Yesterday, I wrote a short article on generating random numbers in Javascript. The Javascript random number generator is similar to C/++ - it gives you a random number from 0 to 1 and you need to make it useful.

At the suggestion of a reader (thanks Justin), I decided to go ahead and turn the general formula for this into a short helper function to generate a random number.
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I’ve been working with PHP for some time now, and I’ve become spoiled with the rand() function for generating random numbers. It’s so simple - pass a min, pass a max, and get the number you want.

While I was working on various game-related scripts this weekend, I was left wondering how to create a random number in Javascript. It’s not quite as simple as the rand() function - we’ll have to go back to the old C-style random number generation.
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I was browsing the Frihost forums this morning, and I stumbled on a cool Javascript game.

One of the Frihost users and his friend made a 3d Worm game. Although the directions are in Spanish (as is the source code), the game is pretty cool. It’s a good example of what you can accomplish with some Javascript/DOM trickery.
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