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Animated Flag
This effect has been done ages ago, back in the days when nehe was still active! I remember seeing this effect for the first time in the 90s and knowing then already it was old. I came across the code...
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Coins Spinning
The code for this post originally started out as example on how to remove bias from a biased coin flip. The code was written to transform a coin that landed heads up 25% of the time to get a result...
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Park Miller distributions
I have posted previously about the Park Miller method for generating uniform random numbers. This post is about visualising the distribution and any modifications of the .random() function. The...
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Binary Sorted Array
Some versions of quick sort and some other sorting algorithms have their worst case when a list is mostly sorted. This post is about an array that keeps itself sorted. It makes use of a binary search...
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Streaming Histograph
Streaming Histograph is a term I came up with for a component I tried to recreate from controul.com. It is essentially a histogram that works with stream data. Stream data is a series of data where...
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Streaming descriptive statistics
I recently ran into the problem of getting sample statistics from potentially infinite population or very large sample sizes. The problem is that most algorithms scale linearly with this problem...
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Park Miller Random Number Generator (RNG)
I remember seeing a seeded random number generator at gskinner.com and thinking wow that has some cool functionality. I completely missed that it was a seeded random number generator. After a while I...
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Marsaglia Transform: Uniform to Standard Normal
The polar method (attributed to George Marsaglia, 1964) is a pseudo-random number sampling method for generating a pair of independent standard normal random variables. While it is superior to the...
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FNV Hash in Java
The need for this function cropped up again. This time I in Java. Below is an implementation for 64bit as well as 32bit. public final class FNVHash { private static final long FNV_64_INIT =...
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Command-line progress bar
[================> ] 33% I frequently need a progress bar for applications, in order to visualize what is going on in the application. Below is a Java implementation of one. private static int...
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