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The OCaml Planet

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Perlin's Simplex Noise

Graphics pioneer Ken Perlin is well-known for his work on procedural generation of textures. Recently he rewrote his classic Noise algorithm...

06 Jan 2012

Matías Giovannini

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(One by) Four by Nine

The four nines puzzle asks which positive numbers can be obtained from arithmetic expressions involving four "9" digits and an assortment ...

30 Dec 2011

Matías Giovannini

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Vose's Alias Method

This is a note regarding the implementation of Vose's Method to construct the alias tables for non-uniform discrete probability sampling pr...

29 Dec 2011

Matías Giovannini

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A Better (Gauss) Error Function

If you do statistics you know of erf and erfc ; if you work in OCaml you surely miss them. It is not very difficult to port the canonical i...

21 Dec 2011

Matías Giovannini

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What's in an ADT ?

14 Dec 2011

Etienne Millon

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Brainfuck in Java

(I don't feel like writing a punning title.) Last time I showed how the use of functors allows for modular and type-safe specification of ...

17 Nov 2011

Matías Giovannini

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Modular Semantics for Brainfuck

The problem with Brainfuck is that its semantics are given by its different implementations but not all its implementations agree so that ...

11 Nov 2011

Matías Giovannini

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