Documentation for PEP, including Technical Memos

PEP: Planetary Ephemeris Program core files

Flow Composed Implicit Runge-Kutta Method

💫 An open-source multi-purpose N-body code

VSOP87 in multiple programming languages

A collection of tools and algorithms for developing traditional roguelikes. Such as field-of-view, pathfinding, and a tile-based terminal emulator.

Sigil is a multi-platform EPUB ebook editor

🔽 Display any CSV (comma separated values) file as a searchable, filterable, pretty HTML table

Swiss Ephemeris source code, official release by Astrodienst. For reporting issues or problems, please use the public mailing list https://groups.io/g/swisseph

Source Code for "Ray Tracing Gems: High-Quality and Real-Time Rendering with DXR and Other APIs" by Eric Haines and Tomas Akenine-Möller

Current version of the HYG Stellar database

The astrology software "Astrolog", version 7.70

The Persistence of Vision Raytracer (POV-Ray)

Fixed Up Smaug Source by the FUSS Project at SmaugMuds

An open source fork of Windows Live Writer

The FileHelpers are a free and easy to use .NET library to read/write data from fixed length or delimited records in files, strings or streams

A multi-person play-by-email game where you conquer the galaxy!

Graphical turn viewer for the PbEM game Galaxy