This is octave.info, produced by makeinfo version 4.2 from octave.texi. 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.info, Node: Concept Index, Next: Variable Index, Prev: Copying, Up: Top Concept Index ************* * Menu: * #: Comments. * #!: Executable Octave Programs. * %: Comments. * --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. * -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. * \ continuation marker: The try Statement. * acknowledgements: Acknowledgements. * addition: Arithmetic Ops. * and operator: Boolean Expressions. * answers, incorrect <1>: Bug Reporting. * answers, incorrect: Bug Criteria. * 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. * break statement: The break Statement. * bug criteria: Bug Criteria. * bug report mailing lists: Bug Lists. * bugs: Reporting Bugs. * bugs, investigating: Bug Reporting. * bugs, known: Trouble. * bugs, reporting <1>: Bug Reporting. * bugs, reporting: Bug Lists. * built-in data types: Built-in Data Types. * built-in function: A Sample Function Description. * case statement: The switch Statement. * catch: The try Statement. * cell arrays: Cell Arrays. * 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. * compounding, value of: Financial Functions. * containers: Containers. * continuation lines: The try Statement. * continue statement: The continue 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 Structures. * data structures: Data Structure Objects. * 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. * do-until statement: The do-until Statement. * 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. * else statement: The if Statement. * elseif statement: The if Statement. * Emacs TAGS files: Using Octave Mode. * end statement: Statements. * end_try_catch: The try Statement. * end_unwind_protect: The unwind_protect 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. * equality operator: Comparison Ops. * equality, tests for: Comparison Ops. * equations, nonlinear: Nonlinear Equations. * erroneous messages: Bug Criteria. * erroneous results <1>: Bug Reporting. * erroneous results: Bug Criteria. * 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. * financial functions: Financial Functions. * flag character (printf): Output Conversion Syntax. * flag character (scanf): Input Conversion Syntax. * flying high and fast: Variables. * fonts: Fonts. * for statement: The for Statement. * Fordyce, A. P.: Evaluation. * Frobenius norm: Basic Matrix Functions. * function descriptions: A Sample Function Description. * function file <1>: Function Files. * function file: A Sample Function Description. * function statement: Defining Functions. * functions, user-defined: Functions and Scripts. * funding Octave development: How You Can Contribute to Octave. * getting a good job: Variables. * global statement: Global 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. * if statement: The if Statement. * 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. * lists: Lists. * 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. * missing data: Missing Data. * money: Financial Functions. * 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. * otags: Using Octave Mode. * otherwise statement: The switch Statement. * 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>: Bug Lists. * reporting bugs: Reporting Bugs. * 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. * switch statement: The switch Statement. * TAGS: Using Octave Mode. * tests for equality: Comparison Ops. * tips: Tips. * transpose: Arithmetic Ops. * transpose, complex-conjugate: Arithmetic Ops. * troubleshooting: Trouble. * try statement: The try Statement. * unary minus: Arithmetic Ops. * undefined behavior: Bug Criteria. * undefined function value: Bug Criteria. * unwind_protect statement: The unwind_protect Statement. * unwind_protect_cleanup: The unwind_protect Statement. * 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. * while statement: The while Statement. * wrong answers <1>: Bug Reporting. * wrong answers: Bug Criteria. * ~/.octaverc: Startup Files.  File: octave.info, Node: Variable Index, Next: Function Index, Prev: Concept Index, Up: Top Variable Index ************** * Menu: * <1>: Dynamically Linked Functions. * <2>: Assignment Ops. * : Global Variables. * 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>: Summary of Built-in Variables. * completion_append_char: Commands For Completion. * crash_dumps_octave_core <1>: Simple File I/O. * crash_dumps_octave_core: Summary of Built-in Variables. * debug_on_error: Debugging. * debug_on_interrupt: Debugging. * debug_on_warning: Debugging. * default_eval_print_flag <1>: Evaluation. * default_eval_print_flag: Summary of Built-in Variables. * default_global_variable_value: Global Variables. * DEFAULT_LOADPATH <1>: Function Files. * DEFAULT_LOADPATH: Summary of Built-in Variables. * default_return_value <1>: Multiple Return Values. * default_return_value: Summary of Built-in Variables. * default_save_format <1>: Simple File I/O. * default_save_format: Summary of Built-in Variables. * define_all_return_values <1>: Multiple Return Values. * define_all_return_values: Summary of Built-in Variables. * 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>: Defaults from the Environment. * EDITOR <2>: Summary of Built-in Variables. * EDITOR: Commands For History. * empty_list_elements_ok <1>: Summary of Built-in Variables. * empty_list_elements_ok: Empty Matrices. * eps: Mathematical Constants. * error_text: Error Handling. * EXEC_PATH <1>: Controlling Subprocesses. * EXEC_PATH: Summary of Built-in Variables. * F_DUPFD: Controlling Subprocesses. * F_GETFD: Controlling Subprocesses. * F_GETFL: Controlling Subprocesses. * F_SETFD: Controlling Subprocesses. * F_SETFL: Controlling Subprocesses. * false: Logical Values. * fixed_point_format <1>: Summary of Built-in Variables. * fixed_point_format: Matrices. * gnuplot_binary <1>: Interaction with gnuplot. * gnuplot_binary: Summary of Built-in Variables. * gnuplot_command_axes: Interaction with gnuplot. * gnuplot_command_end: Interaction with gnuplot. * gnuplot_command_plot: Interaction with gnuplot. * gnuplot_command_replot: Interaction with gnuplot. * gnuplot_command_splot: Interaction with gnuplot. * gnuplot_command_title: Interaction with gnuplot. * gnuplot_command_using: Interaction with gnuplot. * gnuplot_command_with: Interaction with gnuplot. * gnuplot_has_frames: Interaction with gnuplot. * history_file <1>: Summary of Built-in Variables. * history_file: Commands For History. * history_size <1>: Summary of Built-in Variables. * history_size: Commands For History. * i: Mathematical Constants. * I: Mathematical Constants. * ignore_function_time_stamp <1>: Function Files. * ignore_function_time_stamp: Summary of Built-in Variables. * IMAGEPATH: Image Processing. * implicit_num_to_str_ok <1>: Summary of Built-in Variables. * implicit_num_to_str_ok: String Conversions. * implicit_str_to_num_ok <1>: Summary of Built-in Variables. * implicit_str_to_num_ok: String Conversions. * inf: Mathematical Constants. * Inf: Mathematical Constants. * INFO_FILE <1>: Summary of Built-in Variables. * INFO_FILE: Getting Help. * INFO_PROGRAM <1>: Summary of Built-in Variables. * INFO_PROGRAM: Getting Help. * j: Mathematical Constants. * J: Mathematical Constants. * LOADPATH <1>: Function Files. * LOADPATH: Summary of Built-in Variables. * MAKEINFO_PROGRAM: Getting Help. * max_recursion_depth <1>: Recursion. * max_recursion_depth: Summary of Built-in Variables. * NA: Missing Data. * nan: Mathematical Constants. * NaN: Mathematical Constants. * nargin: Defining Functions. * nargout: Multiple Return Values. * 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. * 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 <1>: Special Utility Matrices. * ok_to_lose_imaginary_part: Summary of Built-in Variables. * output_max_field_width <1>: Summary of Built-in Variables. * output_max_field_width: Matrices. * output_precision <1>: Summary of Built-in Variables. * output_precision: Matrices. * page_output_immediately: Input and Output. * page_screen_output <1>: Input and Output. * page_screen_output: Summary of Built-in Variables. * PAGER <1>: Input and Output. * PAGER: Summary of Built-in Variables. * 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>: Terminal Output. * print_answer_id_name: Summary of Built-in Variables. * print_empty_dimensions <1>: Summary of Built-in Variables. * print_empty_dimensions: Empty Matrices. * 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>: Summary of Built-in Variables. * PS4: Customizing the Prompt. * 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>: Returning From a Function. * return_last_computed_value: Summary of Built-in Variables. * save_header_format_string: Simple File I/O. * save_precision <1>: Simple File I/O. * save_precision: Summary of Built-in Variables. * 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>: Summary of Built-in Variables. * split_long_rows: Matrices. * 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>: Summary of Built-in Variables. * struct_levels_to_print: Data Structures. * suppress_verbose_help_message <1>: Summary of Built-in Variables. * suppress_verbose_help_message: Getting Help. * treat_neg_dim_as_zero <1>: Special Utility Matrices. * treat_neg_dim_as_zero: Summary of Built-in Variables. * true: Logical Values. * warn_assign_as_truth_value <1>: The if Statement. * warn_assign_as_truth_value: Summary of Built-in Variables. * warn_comma_in_global_decl: Summary of Built-in Variables. * warn_divide_by_zero <1>: Arithmetic Ops. * warn_divide_by_zero: Summary of Built-in Variables. * warn_function_name_clash <1>: Function Files. * warn_function_name_clash: Summary of Built-in Variables. * warn_future_time_stamp: Function Files. * warn_missing_semicolon: Defining Functions. * warn_reload_forces_clear <1>: Dynamically Linked Functions. * warn_reload_forces_clear: Summary of Built-in Variables. * warn_separator_insert: Matrices. * warn_single_quote_string: String Conversions. * warn_variable_switch_label <1>: The switch Statement. * warn_variable_switch_label: Summary of Built-in Variables. * whitespace_in_literal_matrix <1>: Summary of Built-in Variables. * whitespace_in_literal_matrix: Matrices.