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

### 13.1.9: Version 2.4

#### 13.1.9.1: Version 2.4.4 [2000 May 7]

Change so that only a warning is printed if mathematical operations are requested on empty arrays (e.g. ``y += 10`'). Previously, an error was reported and Gri exited with an error condition, which is bothersome in scripts that rely on successful completion of the Gri job.

Port to the BeOS operating system.

#### 13.1.9.2: Version 2.4.3 [2000 Apr 1]

Change location of all files, to be consistent with Redhat convention. Previously, things were in ``/opt/gri`'; now they are in more standard locations.

#### 13.1.9.3: Version 2.4.2 [2000 Mar 25]

Remove bug in which ``convert grid to image`' produced incorrect images, visible as a patchy appearance with coarse grids.

#### 13.1.9.4: Version 2.4.1 [2000Jan 31]

Remove bug in which ``convert image to grid`' failed to take note of the gri minimum and maximum, so that contouring of the grid was not possible for grids created from images.

#### 13.1.9.5: Version 2.4.0 [2000 Jan 05]

Add ``set input data separator`'. Make ``read columns`' work with various input separators. Make ``read .x.`', etc, work with various input separators.