fourmilab Goto Github PK
Name: John Walker
Type: User
Bio: Founder of Autodesk, Inc. Founder of Marinchip Systems. Author of The Hacker's Diet.
Location: Western Switzerland
Blog: http://www.fourmilab.ch/
Name: John Walker
Type: User
Bio: Founder of Autodesk, Inc. Founder of Marinchip Systems. Author of The Hacker's Diet.
Location: Western Switzerland
Blog: http://www.fourmilab.ch/
C++ program, written using the Literate Programming methodology, which finds anagrams of words or phrases based upon an included dictionary for the crossword game whose name may not be spoken, or a user-defined word list.
Anvil tosser and target for Second Life
Atlast is a FORTH-like threaded language, implemented in standard C, which can either be used stand-alone or embedded in applications to make them programmable and open to extension by users. Floating point, C-like strings, and C/Unix-like file I/O are supported.
Second Life virtual world avatar built entirely from sphere primitives, inspired by Jim Blinn's “Blobby Man” humanoid mannequin from 1987.
Fourmilab Blockchain Tools provide a variety of utilities for users, experimenters, and researchers working with blockchain-based cryptocurrencies such as Bitcoin and Ethereum. Programs are written in Perl and Python and developed with the Literate Programming methodology.
Development environment and archive for Fourmilab's Web implementation of the Nuclear Bomb Effects Computer slide rule from the 1962 edition of the book “The Effects of Nuclear Weapons”
Butterfly simulation for the Second Life virtual world in which butterflies track the evolution of a Lorenz system, demonstrating deterministic chaos. All parameters can be set, and avatars can ride on the butterfly as it flies or wear it as an attachment.
Demonstration application developed in 1990 for the AutoCAD Development System (ADS_ which used the ATLAST Forth-like language kernel to implement a true object-oriented database within AutoCAD including user-defined objects, abstraction, encapsulation, inheritance, and polymorphism. This code is not compatible with any current software system and is of historical interest only.
Second Life attachment which detects whether the current region is hosted in the cloud and informs the user.
Double pendulum dynamic system simulation for the Second Life virtual world
Realistic model of the Earth and Moon for Second Life in Linden Scripting Language
Utility for testing random and pseudorandom sequences, either as bytes or bit streams, reporting entropy, mean value, serial correlation, chi square, and Monte Carlo estimate of an value, serial correlation, chi square, and Monte Carlo estimate of π.
Firework launcher (wearable or stand-alone) for the Second Life virtual world
Tracing its heritage to a program I wrote on punch cards for a Univac 1108 in September 1969, FIST generates banners with a clenched fist and block-letter slogan of your choice. Various silly options let you choose a right- or left-handed fist according to your political persuasion and to adjust the size of the fist commensurate with the vehemence of your convictions and your printer's paper size. Written in ANSI C with the Literate Programming system CWEB.
The Marinchip/Autodesk/Fourmilab floating point benchmark, used since 1980 to evaluate the performance of machines and compilers on trigonometry-intensive floating point computations
Realistic simulation of flocking birds for Second Life in Linden Scripting Language
Foucault pendulum simulator for Second Life in Linden Scripting Language
Fourmilab Web resources
Performance benchmarks for the Second Life virtual world, including a scripting facility to automate tests.
This repository is the development environment and change log of the Web-based tools that accompany “The Hacker's Diet” book, available for free from Fourmilab. This is a Web application, implemented as a Common Gateway Interface (CGI) program written in the Perl language which provides logging of weight, charting and analysis of trends, planning diets, monitoring exercise progress, and balancing calorie intake with weight maintenance goals.
Utility to interconvert ISBN-10 and ISBN-13, re-hyphenate ISBNs according to the standard, and generate Amazon associate links
Collection of Web pages and programs in the JavaScript language perform encryption (256 bit secret key AES) entirely within your Web browser—you needn't download nor install any software, and nothing is sent to any Web site when you encrypt or decrypt a message.
Second Life script package in Linden Scripting Language which implements hierarchical mechanisms including rotation and translation of components and automatic adjustment of child objects. Includes four examples, including an articulated mannequin that runs Second Life animations.
Emulator of the 1969 Mind Grenade hardware random music generator for Second Life in Linden Scripting Language
Astronomical simulations for the Second Life virtual world. Includes a scale model simulation of the solar system, including orbits of asteroids and comets from their orbital elements, simulation of stars orbiting the central black hole in the Milky Way, and a general n-body gravitational system simulator.
Scripted cube for Second Life for learning and exploring rotation, translation, and co-ordinate systems.
Random colour changing script for Second Life objects in Linden Scripting Language
Pumpkin head for Second Life virtual world avatars or static decoration
This is the code base for the www.ratburger.org site
Flying rocket and UFO vehicles for Second Life including autopilot, terrain following, SAM site evasion, and scripting
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.