Chapters:
1: Introduction
2: Simple example
3: Invocation
4: Finer Control
5: X-Y Plots
6: Contour Plots
7: Image Plots
8: Examples
9: Gri Commands
10: Programming
11: Environment
12: Emacs Mode
13: History
14: Installation
15: Gri Bugs
16: Test Suite
17: Gri in Press
18: Acknowledgments
19: License
Indices:
Concepts
Commands
Variables

Gri is an extensible plotting language for producing scientific graphs, such as x-y plots, contour plots, and image plots.

This document describes Gri 2.12.23,
(c) 1991-2008 Dan Kelley.

New users: To see if Gri might be useful to you, spend a few minutes reading the introduction, the simple example tutorial, the FAQ and the cookbook. It is also a good idea to check out the real-world examples. Then you should return here to scan the table of contents.

Experienced users: To check the syntax of a command, consult the list of Gri commands. See the history to learn how Gri has changed over time.

Open-Source Development: Gri is distributed under an OpenSource licence (GPL). To monitor (or contribute to) the development process, visit `gri.sourceforge.net`.

See also: The Gre language combines Gri features with Perl features.