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This is Info file octave, produced by Makeinfo-1.64 from the input file octave.tex. START-INFO-DIR-ENTRY * Octave: (octave). Interactive language for numerical computations. END-INFO-DIR-ENTRY Copyright (C) 1996, 1997 John W. Eaton. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions. File: octave, Node: Copying, Next: Concept Index, Prev: Grammar, Up: Top GNU GENERAL PUBLIC LICENSE ************************** Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble ======== The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a. You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b. You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c. If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a. Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b. Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c. Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS Appendix: How to Apply These Terms to Your New Programs ======================================================= If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES. Copyright (C) 19YY NAME OF AUTHOR This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) 19YY NAME OF AUTHOR Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. SIGNATURE OF TY COON, 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. File: octave, Node: Concept Index, Next: Variable Index, Prev: Copying, Up: Top Concept Index ************* * Menu: * -braindead: Command Line Options. * -debug: Command Line Options. * -echo-commands: Command Line Options. * -exec-path PATH: Command Line Options. * -help: Command Line Options. * -info-file FILENAME: Command Line Options. * -info-program PROGRAM: Command Line Options. * -interactive: Command Line Options. * -no-init-file: Command Line Options. * -no-line-editing: Command Line Options. * -no-site-file: Command Line Options. * -norc: Command Line Options. * -path PATH: Command Line Options. * -quiet: Command Line Options. * -silent: Command Line Options. * -traditional: Command Line Options. * -verbose: Command Line Options. * -version: Command Line Options. * -?: Command Line Options. * -d: Command Line Options. * -f: Command Line Options. * -h: Command Line Options. * -i: Command Line Options. * -p PATH: Command Line Options. * -q: Command Line Options. * -V: Command Line Options. * -x: Command Line Options. * ... <1>: Variable-length Return Lists. * ...: Variable-length Argument Lists. * ... continuation marker: The try Statement. * .octaverc: Startup Files. * break statement: The break Statement. * case statement: The switch Statement. * catch: The try Statement. * continue statement: The continue Statement. * elseif statement: The if Statement. * else statement: The if Statement. * endfor statement: The for Statement. * endfunction statement: Defining Functions. * endif statement: The if Statement. * endswitch statement: The switch Statement. * endwhile statement: The while Statement. * end_try_catch: The try Statement. * end_unwind_protect: The unwind_protect Statement. * end statement: Statements. * for statement: The for Statement. * function statement: Defining Functions. * global statement: Global Variables. * if statement: The if Statement. * otherwise statement: The switch Statement. * switch statement: The switch Statement. * try statement: The try Statement. * unwind_protect_cleanup: The unwind_protect Statement. * unwind_protect statement: The unwind_protect Statement. * while statement: The while Statement. * \ continuation marker: The try Statement. * ~/.octaverc: Startup Files. * #!: Executable Octave Programs. * #: Comments. * %: Comments. * acknowledgements: Acknowledgements. * addition: Arithmetic Ops. * and operator: Boolean Expressions. * answers, incorrect <1>: Bug Criteria. * answers, incorrect: Bug Reporting. * any key: Fonts. * arguments in function call: Calling Functions. * arithmetic operators: Arithmetic Ops. * assignment expressions: Assignment Ops. * assignment operators: Assignment Ops. * body of a loop: The while Statement. * boolean expressions: Boolean Expressions. * boolean operators: Boolean Expressions. * bug criteria: Bug Criteria. * bug report mailing lists: Bug Lists. * bugs: Reporting Bugs. * bugs, investigating: Bug Reporting. * bugs, known: Trouble. * bugs, reporting <1>: Bug Lists. * bugs, reporting: Bug Reporting. * built-in data types: Built-in Data Types. * built-in function: A Sample Function Description. * character strings <1>: Strings. * character strings: String Objects. * Cholesky factorization: Matrix Factorizations. * clearing the screen: Cursor Motion. * coding standards: Tips. * command and ouput logs: Diary and Echo Commands. * command completion: Commands For Completion. * command descriptions: A Sample Command Description. * command echoing: Diary and Echo Commands. * command history: Commands For History. * command options: Command Line Options. * command-line editing: Command Line Editing. * comments: Comments. * comparison expressions: Comparison Ops. * complex-conjugate transpose: Arithmetic Ops. * continuation lines: The try Statement. * contributing to Octave: How You Can Contribute to Octave. * contributors: Preface. * conversion specifications (printf): Formatted Output. * conversion specifications (scanf): Formatted Input. * copyright: Keywords. * core dump: Bug Criteria. * customizing the prompt: Customizing the Prompt. * DAE: Differential Equations. * data structures <1>: Data Structure Objects. * data structures: Data Structures. * data types: Data Types. * data types, built-in: Built-in Data Types. * data types, user-defined: User-defined Data Types. * decrement operator: Assignment Ops. * defining functions: Functions and Scripts. * description format: Format of Descriptions. * diary of commands and output: Diary and Echo Commands. * Differential Equations: Differential Equations. * diffs, submitting: Sending Patches. * distribution of Octave: Distribution. * division: Arithmetic Ops. * documentation notation: Evaluation Notation. * documenting Octave programs: Comments. * dynamic linking: Dynamically Linked Functions. * echoing executing commands: Diary and Echo Commands. * editing the command line: Command Line Editing. * element-by-element evaluation: Element-by-element Boolean Operators. * equality operator: Comparison Ops. * equality, tests for: Comparison Ops. * equations, nonlinear: Nonlinear Equations. * erroneous messages: Bug Criteria. * erroneous results <1>: Bug Criteria. * erroneous results: Bug Reporting. * error message notation: Error Messages. * error messages: Errors. * error messages, incorrect: Bug Criteria. * escape sequence notation: Strings. * evaluation notation: Evaluation Notation. * executable scripts: Executable Octave Programs. * execution speed: Coding Tips. * exiting octave <1>: Quitting Octave. * exiting octave: Running Octave. * exponentiation: Arithmetic Ops. * expression, range: Ranges. * expressions: Expressions. * expressions, assignment: Assignment Ops. * expressions, boolean: Boolean Expressions. * expressions, comparison: Comparison Ops. * expressions, logical: Boolean Expressions. * factorial function: Recursion. * fatal signal: Bug Criteria. * flag character (printf): Output Conversion Syntax. * flag character (scanf): Input Conversion Syntax. * flying high and fast: Variables. * fonts: Fonts. * Fordyce, A. P.: Evaluation. * Frobenius norm: Basic Matrix Functions. * function descriptions: A Sample Function Description. * function file <1>: A Sample Function Description. * function file: Function Files. * functions, user-defined: Functions and Scripts. * funding Octave development: How You Can Contribute to Octave. * getting a good job: Variables. * global variables: Global Variables. * grammar rules: Grammar. * graphics: Two-Dimensional Plotting. * greater than operator: Comparison Ops. * header comments: Function Headers. * help, on-line: Getting Help. * help, where to find: Service. * Hermitian operator: Arithmetic Ops. * Hessenberg decomposition: Matrix Factorizations. * history: Preface. * history of commands: Commands For History. * improving Octave <1>: Sending Patches. * improving Octave: Bug Criteria. * incorrect error messages: Bug Criteria. * incorrect output <1>: Bug Reporting. * incorrect output: Bug Criteria. * incorrect results <1>: Bug Reporting. * incorrect results: Bug Criteria. * increment operator: Assignment Ops. * infinity norm: Basic Matrix Functions. * initialization: Startup Files. * input conversions, for scanf: Table of Input Conversions. * input history: Commands For History. * installation trouble: Trouble. * installing Octave: Installation. * introduction: Introduction. * invalid input: Bug Criteria. * job hunting: Variables. * keywords: Keywords. * known causes of trouble: Trouble. * language definition: Grammar. * less than operator: Comparison Ops. * loadable function: A Sample Function Description. * logging commands and output: Diary and Echo Commands. * logical expressions: Boolean Expressions. * logical operators: Boolean Expressions. * loop: The while Statement. * looping over structure elements: Looping Over Structure Elements. * LP: Optimization. * LU decomposition: Matrix Factorizations. * lvalue: Assignment Ops. * mapping function: A Sample Function Description. * matching failure, in scanf: Formatted Input. * matrices: Matrices. * matrix multiplication: Arithmetic Ops. * maximum field width (scanf): Input Conversion Syntax. * messages, error: Errors. * minimum field width (printf): Output Conversion Syntax. * multiplication: Arithmetic Ops. * negation: Arithmetic Ops. * NLP: Optimization. * nonlinear equations: Nonlinear Equations. * nonlinear programming: Optimization. * not operator: Boolean Expressions. * numeric constant <1>: Numeric Data Types. * numeric constant: Numeric Objects. * numeric value <1>: Numeric Data Types. * numeric value: Numeric Objects. * Octave command options: Command Line Options. * ODE: Differential Equations. * on-line help: Getting Help. * operator precedence: Operator Precedence. * operators, arithmetic: Arithmetic Ops. * operators, assignment: Assignment Ops. * operators, boolean: Boolean Expressions. * operators, decrement: Assignment Ops. * operators, increment: Assignment Ops. * operators, logical: Boolean Expressions. * operators, relational: Comparison Ops. * optimization: Optimization. * options, Octave command: Command Line Options. * or operator: Boolean Expressions. * oregonator: Ordinary Differential Equations. * output conversions, for printf: Table of Output Conversions. * partial fraction expansion: Polynomial Manipulations. * patches, submitting: Sending Patches. * plotting: Two-Dimensional Plotting. * precision (printf): Output Conversion Syntax. * printing notation: Printing Notation. * program, self contained: Executable Octave Programs. * programs: Comments. * prompt customization: Customizing the Prompt. * QP: Optimization. * QR factorization: Matrix Factorizations. * quadratic programming: Optimization. * quitting octave <1>: Quitting Octave. * quitting octave: Running Octave. * quotient: Arithmetic Ops. * range expressions: Ranges. * relational operators: Comparison Ops. * reporting bugs <1>: Reporting Bugs. * reporting bugs: Bug Lists. * results, incorrect <1>: Bug Reporting. * results, incorrect: Bug Criteria. * Schur decomposition: Matrix Factorizations. * script files: Functions and Scripts. * scripts: Executable Octave Programs. * self contained programs: Executable Octave Programs. * short-circuit evaluation: Short-circuit Boolean Operators. * side effect: Assignment Ops. * singular value decomposition: Matrix Factorizations. * speedups: Coding Tips. * standards of coding style: Tips. * startup: Startup Files. * startup files: Startup Files. * statements: Statements. * strings <1>: Strings. * strings: String Objects. * structure elements, looping over: Looping Over Structure Elements. * structures <1>: Data Structures. * structures: Data Structure Objects. * submitting diffs: Sending Patches. * submitting patches: Sending Patches. * subtraction: Arithmetic Ops. * suggestions: Bug Criteria. * tests for equality: Comparison Ops. * tips: Tips. * transpose: Arithmetic Ops. * transpose, complex-conjugate: Arithmetic Ops. * troubleshooting: Trouble. * unary minus: Arithmetic Ops. * undefined behavior: Bug Criteria. * undefined function value: Bug Criteria. * use of comments: Comments. * user-defined data types: User-defined Data Types. * user-defined functions: Functions and Scripts. * user-defined variables: Variables. * variable descriptions: A Sample Variable Description. * Variable-length argument lists: Variable-length Argument Lists. * Variable-length return lists: Variable-length Return Lists. * variables, global: Global Variables. * variables, user-defined: Variables. * warranty: Keywords. * wrong answers <1>: Bug Criteria. * wrong answers: Bug Reporting. File: octave, Node: Variable Index, Next: Function Index, Prev: Concept Index, Up: Top Variable Index ************** * Menu: * all_va_args: Variable-length Argument Lists. * ans: Terminal Output. * argv: Command Line Options. * automatic_replot <1>: Two-Dimensional Plotting. * automatic_replot: Summary of Built-in Variables. * beep_on_error <1>: Error Handling. * beep_on_error: Summary of Built-in Variables. * completion_append_char <1>: Commands For Completion. * completion_append_char: Summary of Built-in Variables. * default_eval_print_flag <1>: Summary of Built-in Variables. * default_eval_print_flag: Evaluation. * default_return_value <1>: Summary of Built-in Variables. * default_return_value: Multiple Return Values. * default_save_format <1>: Summary of Built-in Variables. * default_save_format: Simple File I/O. * define_all_return_values <1>: Summary of Built-in Variables. * define_all_return_values: Multiple Return Values. * do_fortran_indexing <1>: Index Expressions. * do_fortran_indexing: Summary of Built-in Variables. * do_what_i_mean_not_what_i_say: A Sample Variable Description. * e: Mathematical Constants. * echo_executing_commands: Diary and Echo Commands. * EDITOR <1>: Commands For History. * EDITOR <2>: Summary of Built-in Variables. * EDITOR: Defaults from the Environment. * empty_list_elements_ok <1>: Empty Matrices. * empty_list_elements_ok: Summary of Built-in Variables. * eps: Mathematical Constants. * error_text: Error Handling. * EXEC_PATH <1>: Summary of Built-in Variables. * EXEC_PATH: Controlling Subprocesses. * F_DUPFD: Controlling Subprocesses. * F_GETFD: Controlling Subprocesses. * F_GETFL: Controlling Subprocesses. * F_SETFD: Controlling Subprocesses. * F_SETFL: Controlling Subprocesses. * gnuplot_binary <1>: Summary of Built-in Variables. * gnuplot_binary: Three-Dimensional Plotting. * gnuplot_has_frames: Three-Dimensional Plotting. * gnuplot_has_multiplot: Three-Dimensional Plotting. * history_file <1>: Commands For History. * history_file: Summary of Built-in Variables. * history_size <1>: Commands For History. * history_size: Summary of Built-in Variables. * I: Mathematical Constants. * ignore_function_time_stamp <1>: Function Files. * ignore_function_time_stamp: Summary of Built-in Variables. * IMAGEPATH: Image Processing. * implicit_str_to_num_ok <1>: Summary of Built-in Variables. * implicit_str_to_num_ok: String Conversions. * inf: Mathematical Constants. * INFO_FILE <1>: Summary of Built-in Variables. * INFO_FILE: Getting Help. * INFO_PROGRAM <1>: Getting Help. * INFO_PROGRAM: Summary of Built-in Variables. * j: Mathematical Constants. * LOADPATH <1>: Summary of Built-in Variables. * LOADPATH: Function Files. * NaN: Mathematical Constants. * nargin <1>: Command Line Options. * nargin: Defining Functions. * nargout: Multiple Return Values. * OCTAVE_EXEC_PATH: Defaults from the Environment. * OCTAVE_HISTFILE: Defaults from the Environment. * OCTAVE_HISTSIZE: Defaults from the Environment. * OCTAVE_HOME: Summary of Built-in Variables. * OCTAVE_INFO_FILE: Defaults from the Environment. * OCTAVE_INFO_PROGRAM: Defaults from the Environment. * OCTAVE_PATH: Defaults from the Environment. * OCTAVE_VERSION: System Information. * ok_to_lose_imaginary_part: Summary of Built-in Variables. * output_max_field_width <1>: Matrices. * output_max_field_width: Summary of Built-in Variables. * output_precision <1>: Matrices. * output_precision: Summary of Built-in Variables. * O_APPEND: Controlling Subprocesses. * O_ASYNC: Controlling Subprocesses. * O_NONBLOCK: Controlling Subprocesses. * O_RDONLY: Controlling Subprocesses. * O_RDWR: Controlling Subprocesses. * O_SYNC: Controlling Subprocesses. * O_WRONLY: Controlling Subprocesses. * PAGER <1>: Summary of Built-in Variables. * PAGER: Input and Output. * page_output_immediately: Input and Output. * page_screen_output <1>: Summary of Built-in Variables. * page_screen_output: Input and Output. * pi: Mathematical Constants. * prefer_column_vectors <1>: Index Expressions. * prefer_column_vectors: Summary of Built-in Variables. * prefer_zero_one_indexing: Index Expressions. * print_answer_id_name <1>: Summary of Built-in Variables. * print_answer_id_name: Terminal Output. * print_empty_dimensions <1>: Empty Matrices. * print_empty_dimensions: Summary of Built-in Variables. * program_invocation_name: Command Line Options. * program_name: Command Line Options. * propagate_empty_matrices: Empty Matrices. * PS1 <1>: Summary of Built-in Variables. * PS1: Customizing the Prompt. * PS2 <1>: Summary of Built-in Variables. * PS2: Customizing the Prompt. * PS4 <1>: Customizing the Prompt. * PS4: Summary of Built-in Variables. * PWD: Current Working Directory. * realmax: Mathematical Constants. * realmin: Mathematical Constants. * resize_on_range_error <1>: Index Expressions. * resize_on_range_error: Summary of Built-in Variables. * return: Returning From a Function. * return_last_computed_value <1>: Summary of Built-in Variables. * return_last_computed_value: Returning From a Function. * save_precision <1>: Summary of Built-in Variables. * save_precision: Simple File I/O. * saving_history <1>: Summary of Built-in Variables. * saving_history: Commands For History. * SEEK_CUR: File Positioning. * SEEK_END: File Positioning. * SEEK_SET: File Positioning. * silent_functions <1>: Defining Functions. * silent_functions: Summary of Built-in Variables. * split_long_rows <1>: Matrices. * split_long_rows: Summary of Built-in Variables. * stderr: C-Style I/O Functions. * stdin: C-Style I/O Functions. * stdout: C-Style I/O Functions. * string_fill_char: Creating Strings. * struct_levels_to_print <1>: Data Structures. * struct_levels_to_print: Summary of Built-in Variables. * suppress_verbose_help_message <1>: Summary of Built-in Variables. * suppress_verbose_help_message: Getting Help. * treat_neg_dim_as_zero <1>: Summary of Built-in Variables. * treat_neg_dim_as_zero: Special Utility Matrices. * warn_assign_as_truth_value <1>: Summary of Built-in Variables. * warn_assign_as_truth_value: The if Statement. * warn_comma_in_global_decl <1>: Summary of Built-in Variables. * warn_comma_in_global_decl: Global Variables. * warn_divide_by_zero <1>: Summary of Built-in Variables. * warn_divide_by_zero: Arithmetic Ops. * warn_function_name_clash <1>: Function Files. * warn_function_name_clash: Summary of Built-in Variables. * warn_missing_semicolon: Defining Functions. * whitespace_in_literal_matrix <1>: Summary of Built-in Variables. * whitespace_in_literal_matrix: Matrices.