code

Ansys dev
Workbench Scripting: Using Forms in your Script | Ironpython | Mechanical Scripting 5 Parts | Macros in Mechanical

Web/JS
LiteGraph.js | TAngle.js | Math.js | Numeric.js | Dygraph | WaveDrom | ThreeJS | Synaptic.js | Jsxgraph

Cool stuff
A Neural Network in 13 lines of Python | Stephen Diehl´s Blog | Elliptic Curve Cryptography | Fast inverse square root | The Patriot missle failure | Dangerous algorithm | Sinclair's amazing 1974 calculator hack

AutoHotKey
XML | Enviroment Variables

uC
Arduino encryption

Autocad/Lisp
LeeMac | Terrycad Autolisp Exchange

Optimisation
MiniZink | FSM Simulator

Programming methodology
Game programming patterns

Theory
GraphML