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

### 13.1.1: Version 2.12

#### 13.1.1.1: Version 2.12.1 [2002 Sep 25]

Bug Fixes

- Fix SourceForge bug #613075 ... RPN operators ``sin`', ``cos`', and ``tan`' were limited in range (new bug in last release)

#### 13.1.1.2: Version 2.12.1 [2002 Sep 15]

(Terry Fox Day, Canada.)

New Features

- Add ``sed`' RPN operator, to work on strings see Binary Operators.

- Add ``skewness`' and ``kurtosis`' RPN operators, to work on columns see Manipulation of Columns etc.

Removed Features

- n/a

Bug Fixes

- Fix SourceForge bug #606303 ... web-pages were not valid html-4.0.

- Fix SourceForge bug #593958 ... missing-values should be ignored if they occur in intermediate results of RPN calculations.

- Fix SourceForge bug #600395 ... won't compile with recently released version (3.2) of GCC compiler.

- Fix SourceForge bug #600233 ... segfaults if some RPN operators are used on stacks that do not contain enough entries (e.g. ``show {rpn cosh}`').