GNU Octave

A high-level interactive language for numerical computations

Edition 3 for Octave version 2.1.x

February 1997

• Preface
  • Acknowledgements
  • How You Can Contribute to Octave
  • Distribution
• A Brief Introduction to Octave
  • Running Octave
  • Simple Examples
    • Creating a Matrix
    • Matrix Arithmetic
    • Solving Linear Equations
    • Integrating Differential Equations
    • Producing Graphical Output
    • Editing What You Have Typed
    • Help and Documentation
  • Conventions
    • Fonts
    • Evaluation Notation
    • Printing Notation
    • Error Messages
    • Format of Descriptions
      • A Sample Function Description
      • A Sample Command Description
      • A Sample Variable Description
• Getting Started
  • Invoking Octave
    • Command Line Options
    • Startup Files
  • Quitting Octave
  • Commands for Getting Help
  • Command Line Editing
    • Cursor Motion
    • Killing and Yanking
    • Commands For Changing Text
    • Letting Readline Type For You
    • Commands For Manipulating The History
    • Customizing readline
    • Customizing the Prompt
    • Diary and Echo Commands
  • How Octave Reports Errors
  • Executable Octave Programs
  • Comments in Octave Programs
• Data Types
  • Built-in Data Types
    • Numeric Objects
    • Missing Data
    • String Objects
    • Data Structure Objects
  • User-defined Data Types
  • Object Sizes
• Numeric Data Types
  • Matrices
    • Empty Matrices
  • Ranges
  • Logical Values
  • Predicates for Numeric Objects
• Strings
  • Creating Strings
  • Searching and Replacing
  • String Conversions
  • Character Class Functions
• Data Structures
• Containers
  • Lists
  • Cell Arrays
• I/O Streams
• Variables
  • Global Variables
  • Status of Variables
  • Summary of Built-in Variables
  • Defaults from the Environment
• Expressions
  • Index Expressions
  • Calling Functions
    • Call by Value
    • Recursion
  • Arithmetic Operators
  • Comparison Operators
  • Boolean Expressions
    • Element-by-element Boolean Operators
    • Short-circuit Boolean Operators
  • Assignment Expressions
  • Increment Operators
  • Operator Precedence
• Evaluation
• Statements
  • The if Statement
  • The switch Statement
  • The while Statement
  • The do-until Statement
  • The for Statement
    • Looping Over Structure Elements
  • The break Statement
  • The continue Statement
  • The unwind_protect Statement
  • The try Statement
  • Continuation Lines
• Functions and Script Files
  • Defining Functions
  • Multiple Return Values
  • Variable-length Argument Lists
  • Variable-length Return Lists
  • Returning From a Function
  • Function Files
  • Script Files
  • Dynamically Linked Functions
  • Organization of Functions Distributed with Octave
• Error Handling
• Debugging
• Input and Output
  • Basic Input and Output
    • Terminal Output
    • Terminal Input
    • Simple File I/O
  • C-Style I/O Functions
    • Opening and Closing Files
    • Simple Output
    • Line-Oriented Input
    • Formatted Output
    • Output Conversion for Matrices
    • Output Conversion Syntax
    • Table of Output Conversions
    • Integer Conversions
    • Floating-Point Conversions
    • Other Output Conversions
    • Formatted Input
    • Input Conversion Syntax
    • Table of Input Conversions
    • Numeric Input Conversions
    • String Input Conversions
    • Binary I/O
    • Temporary Files
    • End of File and Errors
    • File Positioning
• Plotting
  • Two-Dimensional Plotting
  • Specialized Two-Dimensional Plots
  • Three-Dimensional Plotting
  • Plot Annotations
  • Multiple Plots on One Page
  • Multiple Plot Windows
  • Interaction with gnuplot
• Matrix Manipulation
  • Finding Elements and Checking Conditions
  • Rearranging Matrices
  • Special Utility Matrices
  • Famous Matrices
• Arithmetic
  • Utility Functions
  • Complex Arithmetic
  • Trigonometry
  • Sums and Products
  • Special Functions
  • Coordinate Transformations
  • Mathematical Constants
• Linear Algebra
  • Basic Matrix Functions
  • Matrix Factorizations
  • Functions of a Matrix
• Nonlinear Equations
• Quadrature
  • Functions of One Variable
  • Orthogonal Collocation
• Differential Equations
  • Ordinary Differential Equations
  • Differential-Algebraic Equations
• Optimization
  • Linear Programming
  • Quadratic Programming
  • Nonlinear Programming
  • Linear Least Squares
• Statistics
  • Basic Statistical Functions
  • Tests
  • Models
  • Distributions
• Financial Functions
• Sets
• Polynomial Manipulations
• Control Theory
  • System Data Structure
    • Variables common to all OCST system formats
    • tf format variables
    • zp format variables
    • ss format variables
  • System Construction and Interface Functions
    • Finite impulse response system interface functions
    • State space system interface functions
    • Transfer function system interface functions
    • Zero-pole system interface functions
    • Data structure access functions
    • Data structure internal functions
  • System display functions
  • Block Diagram Manipulations
  • Numerical Functions
  • System Analysis-Properties
  • System Analysis-Time Domain
  • System Analysis-Frequency Domain
  • Controller Design
  • Miscellaneous Functions (Not yet properly filed/documented)
• Signal Processing
• Image Processing
• Audio Processing
• Quaternions
• System Utilities
  • Timing Utilities
  • Filesystem Utilities
  • Controlling Subprocesses
  • Process, Group, and User IDs
  • Environment Variables
  • Current Working Directory
  • Password Database Functions
  • Group Database Functions
  • System Information
• Tips and Standards
  • Writing Clean Octave Programs
  • Tips for Making Code Run Faster.
  • Tips for Documentation Strings
  • Tips on Writing Comments
  • Conventional Headers for Octave Functions
• Known Causes of Trouble
  • Actual Bugs We Haven't Fixed Yet
  • Reporting Bugs
  • Have You Found a Bug?
  • Where to Report Bugs
  • How to Report Bugs
  • Sending Patches for Octave
  • How To Get Help with Octave
• Installing Octave
  • Installation Problems
• Emacs Octave Support
  • Installing EOS
  • Using Octave Mode
  • Running Octave From Within Emacs
  • Using the Emacs Info Reader for Octave
• Grammar
  • Keywords
• GNU GENERAL PUBLIC LICENSE
  • Preamble
  • Appendix: How to Apply These Terms to Your New Programs
• Concept Index
• Variable Index
• Function Index
• Operator Index

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