mathematics
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Geometry in Action
This page collects various areas in which ideas from discrete and computational geometry (meaning mainly low-dimensional Euclidean geometry) meet some real world applications. It contains brief descriptions of those applications and the geometric questions arising from them, as well as pointers to web pages on the applications themselves and on their geometric connections. This is largely organized by application but some major general techniques are also listed as topics.
Voronoi diagrams have been used by anthropologists to describe regions of influence of different cultures; by crystallographers to explain the structure of certain crystals and metals; by ecologists to study competition between plants; and by economists to model markets in the U.S. economy... david at merganser.math.gvsu.edu Introduction Suppose that you live in a desert where the only sources of water are a few springs scattered here and there. For each spring, you would like to determine the locations nearest that spring.
American Mathematical Society :: Feature Column
Scilab Home Page
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A photo of a chaotic attractor from a circuit with three electronic integrators and two step-function nonlinearities. Each step function is responsible for a double scroll in the attractor.
Chaos Theory
December 2007 We are all familiar with the simple ways of tiling the plane by equilateral triangles, squares, or hexagons. These are the three regular tilings: each is made up of identical copies of a regular polygon — a shape whose sides all have the same length and angles between them — and adjacent tiles share whole edges, that is, we never have part of a tile's edge overlapping part of another tile's edge.
The trouble with five
Evil Mad Scientist Laboratories - Iterative Algorithmic Plastic
The next step is to cut, drill, or otherwise prepare the material as desired and bake to harden the clay.World's Hardest Easy Geometry Problem
Using only elementary geometry, determine angle x. Provide a step-by-step proof.Any 3D engine draws it’s power and speed from the mathematical models and implementations within, and trust John Carmack of ID software for using really good hacks.
Magical Square Root Implementation In Quake III
This WWW page is intended to serve as a comprehensive collection of algorithm implementations for over seventy of the most fundamental problems in combinatorial algorithms. The problem taxonomy, implementations, and supporting material are all drawn from my book The Algorithm Design Manual .