Documentation
Atlas Documentation
Welcome to the Atlas of Lie Groups and Representations software documentation. This site covers everything you need to install, run, and use the Atlas software and its Axis scripting language.
This documentation is for the Atlas software and scripting language only. For the mathematics behind the software, see the Papers page, in particular Unitary Representations of Real Reductive Groups.
Where to Start
If you are new to Atlas, begin with Getting Started to download and install the software. Then consult the Basic Commands tutorial to get up and running quickly.
If you already have Atlas installed and want to look up a specific function or script file, go directly to the Script Files section, or browse the Built-in Functions reference.
Contents
How to download and install Atlas on Linux, macOS, or Windows, and how to run it for the first time.
An introduction to the Atlas software and Axis scripting language, covering the most important commands and how to use them.
The Axis scripting language: types, expressions, functions, loops, and the full syntax of the language, by chapter or on one page.
The built-in operators and functions, by topic or all on one page.
One page for each .at script file read when loading
all.at, documenting the functions and types it provides; see also the
Function Index.
All contents
About the Software
Getting Started
Software Tutorial
atlas Library
- Brief Introduction
- The Axis Language
- Design Principles
- Types
- Array
- Tuple Displays and Pattern Matching
- Implicit Conversions
- Defining and Modifying Identifiers
- Defining Functions and Operators
- Overloading v.s. Redefining, and Conflicts
- Control Structures
- Recursion
- Splitting Commands
- Output, Input, and Redirection
- Miscellaneous Commands
- Syntax Summary
- Complete Language Reference (one page)
- Built-in Functions
- Script Files
- Script Dependency Graph
- Function Index