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: Function Index, Next: Operator Index, Prev: Variable Index, Up: Top Function Index ************** * Menu: * ( <1>: Audio Processing. * ( <2>: Signal Processing. * ( <3>: Polynomial Manipulations. * (: Trigonometry. * ,: cacsd. * =: Signal Processing. * [: Coordinate Transformations. * abcddim: sysprop. * abs: Complex Arithmetic. * acos: Trigonometry. * acosh: Trigonometry. * acot: Trigonometry. * acsc: Trigonometry. * acsch: Trigonometry. * airy: Special Functions. * all: Finding Elements and Checking Conditions. * analdemo: sysprop. * angle: Complex Arithmetic. * anova: Tests. * any: Finding Elements and Checking Conditions. * append: Lists. * arch_fit: Signal Processing. * arch_rnd: Signal Processing. * arch_test: Signal Processing. * are: numerical. * arg: Complex Arithmetic. * arma_rnd: Signal Processing. * asctime: Timing Utilities. * asec: Trigonometry. * asech: Trigonometry. * asin: Trigonometry. * asinh: Trigonometry. * atan: Trigonometry. * atan2: Trigonometry. * atanh: Trigonometry. * atexit: Quitting Octave. * autocor: Signal Processing. * autocov: Signal Processing. * autoreg_matrix: Signal Processing. * axis: Two-Dimensional Plotting. * axis2dlim: misc. * balance: Basic Matrix Functions. * bar: Specialized Two-Dimensional Plots. * bartlett: Signal Processing. * bartlett_test: Tests. * base2dec: String Conversions. * bddemo: blockdiag. * besselh: Special Functions. * besseli: Special Functions. * besselj: Special Functions. * besselk: Special Functions. * bessely: Special Functions. * beta: Special Functions. * beta_cdf: Distributions. * beta_inv: Distributions. * beta_pdf: Distributions. * beta_rnd: Distributions. * betainc: Special Functions. * bincoeff: Special Functions. * binomial_cdf: Distributions. * binomial_inv: Distributions. * binomial_pdf: Distributions. * binomial_rnd: Distributions. * blackman: Signal Processing. * blanks: Creating Strings. * bode: sysfreq. * bode_bounds: sysfreq. * bottom_title <1>: Multiple Plots on One Page. * bottom_title: Plot Annotations. * bug_report <1>: Bug Lists. * bug_report: Reporting Bugs. * buildssic: blockdiag. * c2d: systime. * cauchy_cdf: Distributions. * cauchy_inv: Distributions. * cauchy_pdf: Distributions. * cauchy_rnd: Distributions. * cd <1>: Current Working Directory. * cd: A Sample Command Description. * ceil: Utility Functions. * cell: Cell Arrays. * cellstr: Cell Arrays. * center: Basic Statistical Functions. * char: Creating Strings. * chdir <1>: Current Working Directory. * chdir: A Sample Command Description. * chisquare_cdf: Distributions. * chisquare_inv: Distributions. * chisquare_pdf: Distributions. * chisquare_rnd: Distributions. * chisquare_test_homogeneity: Tests. * chisquare_test_independence: Tests. * chol: Matrix Factorizations. * clc: Cursor Motion. * clear: Status of Variables. * clearplot: Two-Dimensional Plotting. * clg: Two-Dimensional Plotting. * clock: Timing Utilities. * cloglog: Basic Statistical Functions. * closeplot: Two-Dimensional Plotting. * colloc: Orthogonal Collocation. * colormap: Image Processing. * columns: Object Sizes. * com2str: Creating Strings. * common_size: Finding Elements and Checking Conditions. * commutation_matrix: Special Functions. * compan: Polynomial Manipulations. * complement: Sets. * completion_matches: Commands For Completion. * computer: System Information. * cond: Basic Matrix Functions. * conj: Complex Arithmetic. * contour: Specialized Two-Dimensional Plots. * conv: Polynomial Manipulations. * cor: Basic Statistical Functions. * cor_test: Tests. * corrcoef: Basic Statistical Functions. * cos: Trigonometry. * cosh: Trigonometry. * cot: Trigonometry. * coth: Trigonometry. * cov: Basic Statistical Functions. * cputime: Timing Utilities. * create_set: Sets. * cross: Special Functions. * csc: Trigonometry. * csch: Trigonometry. * ctime: Timing Utilities. * ctrb: sysprop. * cumprod: Sums and Products. * cumsum: Sums and Products. * cut: Basic Statistical Functions. * d2c: systime. * damp: systime. * dare: numerical. * daspk: Differential-Algebraic Equations. * daspk_options: Differential-Algebraic Equations. * dasrt: Differential-Algebraic Equations. * dasrt_options: Differential-Algebraic Equations. * date: Timing Utilities. * dbclear: Debugging. * dbstatus: Debugging. * dbstop: Debugging. * dbtype: Debugging. * dbwhere: Debugging. * dcgain: systime. * deblank: Searching and Replacing. * dec2base: String Conversions. * dec2bin: String Conversions. * dec2hex: String Conversions. * deconv: Polynomial Manipulations. * DEMOcontrol: Control Theory. * det: Basic Matrix Functions. * detrend: Signal Processing. * dgkfdemo: cacsd. * dgram: numerical. * diag: Special Utility Matrices. * diary: Diary and Echo Commands. * diff: Finding Elements and Checking Conditions. * dir: Current Working Directory. * discrete_cdf: Distributions. * discrete_inv: Distributions. * discrete_pdf: Distributions. * discrete_rnd: Distributions. * disp: Terminal Output. * dkalman: cacsd. * dlqe: cacsd. * dlqr: cacsd. * dlyap: numerical. * dmr2d: systime. * dmult: Basic Matrix Functions. * do_string_escapes: String Conversions. * document: Status of Variables. * dot: Basic Matrix Functions. * dre: numerical. * dup2: Controlling Subprocesses. * duplication_matrix: Special Functions. * durbinlevinson: Signal Processing. * echo: Diary and Echo Commands. * edit_history: Commands For History. * eig: Basic Matrix Functions. * empirical_cdf: Distributions. * empirical_inv: Distributions. * empirical_pdf: Distributions. * empirical_rnd: Distributions. * endgrent: Group Database Functions. * endpwent: Password Database Functions. * erf: Special Functions. * erfc: Special Functions. * erfinv: Special Functions. * error: Error Handling. * errorbar: Specialized Two-Dimensional Plots. * etime: Timing Utilities. * eval: Evaluation. * exec: Controlling Subprocesses. * exist: Status of Variables. * exit: Quitting Octave. * exp: Utility Functions. * expm: Functions of a Matrix. * exponential_cdf: Distributions. * exponential_inv: Distributions. * exponential_pdf: Distributions. * exponential_rnd: Distributions. * eye: Special Utility Matrices. * f_cdf: Distributions. * f_inv: Distributions. * f_pdf: Distributions. * f_rnd: Distributions. * f_test_regression: Tests. * fclose: Opening and Closing Files. * fcntl: Controlling Subprocesses. * fdisp: Terminal Output. * feof: EOF and Errors. * ferror: EOF and Errors. * feval: Evaluation. * fflush: Input and Output. * fft: Signal Processing. * fft2: Signal Processing. * fftconv: Signal Processing. * fftfilt: Signal Processing. * fftshift: Signal Processing. * fgetl: Line-Oriented Input. * fgets: Line-Oriented Input. * fieldnames: Data Structures. * figure: Multiple Plot Windows. * file_in_loadpath: Function Files. * file_in_path: Filesystem Utilities. * filter: Signal Processing. * find: Finding Elements and Checking Conditions. * findstr: Searching and Replacing. * finite: Finding Elements and Checking Conditions. * fir2sys: fir2sys. * fix: Utility Functions. * fliplr: Rearranging Matrices. * flipud: Rearranging Matrices. * floor: Utility Functions. * fnmatch: Filesystem Utilities. * foo: A Sample Function Description. * fopen: Opening and Closing Files. * fork: Controlling Subprocesses. * format: Terminal Output. * fprintf: Formatted Output. * fputs: Simple Output. * fractdiff: Signal Processing. * frdemo: sysfreq. * fread: Binary I/O. * freport: EOF and Errors. * freqchkw: sysfreq. * freqz: Signal Processing. * frewind: File Positioning. * fscanf: Formatted Input. * fseek: File Positioning. * fsolve: Nonlinear Equations. * fsolve_options: Nonlinear Equations. * ftell: File Positioning. * fv: Financial Functions. * fvl: Financial Functions. * fwrite: Binary I/O. * gamma: Special Functions. * gamma_cdf: Distributions. * gamma_inv: Distributions. * gamma_pdf: Distributions. * gamma_rnd: Distributions. * gammainc: Special Functions. * gammaln: Special Functions. * gcd: Utility Functions. * geometric_cdf: Distributions. * geometric_inv: Distributions. * geometric_pdf: Distributions. * geometric_rnd: Distributions. * getegid: Process ID Information. * getenv: Environment Variables. * geteuid: Process ID Information. * getgid: Process ID Information. * getgrent: Group Database Functions. * getgrgid: Group Database Functions. * getgrnam: Group Database Functions. * getpgrp: Process ID Information. * getpid: Process ID Information. * getppid: Process ID Information. * getpwent: Password Database Functions. * getpwnam: Password Database Functions. * getpwuid: Password Database Functions. * getrusage: System Information. * getuid: Process ID Information. * givens: Basic Matrix Functions. * glob: Filesystem Utilities. * gls: Linear Least Squares. * gmtime: Timing Utilities. * gplot: Two-Dimensional Plotting. * gram: numerical. * graw: Interaction with gnuplot. * gray: Image Processing. * gray2ind: Image Processing. * grid: Plot Annotations. * gset: Two-Dimensional Plotting. * gshow: Two-Dimensional Plotting. * gsplot: Three-Dimensional Plotting. * h2norm: sysprop. * hamming: Signal Processing. * hankel: Famous Matrices. * hanning: Signal Processing. * help: Getting Help. * hess: Matrix Factorizations. * hex2dec: String Conversions. * hilb: Famous Matrices. * hinf_ctr: cacsd. * hinfdemo: cacsd. * hinfnorm: sysprop. * hinfsyn: cacsd. * hinfsyn_chk: cacsd. * hinfsyn_ric: cacsd. * hist: Specialized Two-Dimensional Plots. * history: Commands For History. * hold: Two-Dimensional Plotting. * home: Cursor Motion. * hotelling_test: Tests. * hotelling_test_2: Tests. * housh: Matrix Factorizations. * HSV_MAP: Image Processing. * hurst: Signal Processing. * hypergeometric_cdf: Distributions. * hypergeometric_inv: Distributions. * hypergeometric_pdf: Distributions. * hypergeometric_rnd: Distributions. * ifft: Signal Processing. * ifft2: Signal Processing. * imag: Complex Arithmetic. * image: Image Processing. * imagesc: Image Processing. * impulse: systime. * imshow: Image Processing. * ind2gray: Image Processing. * ind2rgb: Image Processing. * index: Searching and Replacing. * input: Terminal Input. * int2str: Creating Strings. * intersection: Sets. * inv: Basic Matrix Functions. * inverse: Basic Matrix Functions. * invhilb: Famous Matrices. * iqr: Basic Statistical Functions. * irr: Financial Functions. * is_abcd: sysprop. * is_controllable: sysprop. * is_detectable: sysprop. * is_dgkf: sysprop. * is_digital: sysprop. * is_duplicate_entry: Finding Elements and Checking Conditions. * is_leap_year: Timing Utilities. * is_nan_or_na: Missing Data. * is_observable: sysprop. * is_sample: sysprop. * is_signal_list: sysprop. * is_siso: sysprop. * is_stabilizable: sysprop. * is_stable: sysprop. * isalnum: Character Class Functions. * isalpha: Character Class Functions. * isascii: Character Class Functions. * isbool: Predicates for Numeric Objects. * iscell: Cell Arrays. * iscntrl: Character Class Functions. * iscomplex: Predicates for Numeric Objects. * isdigit: Character Class Functions. * isempty: Object Sizes. * isfield: Data Structures. * isglobal: Global Variables. * isgraph: Character Class Functions. * ishold: Two-Dimensional Plotting. * isieee: System Information. * isinf: Finding Elements and Checking Conditions. * isletter: Character Class Functions. * islist: Lists. * islower: Character Class Functions. * ismatrix: Predicates for Numeric Objects. * isna: Missing Data. * isnan: Finding Elements and Checking Conditions. * isnumeric: Predicates for Numeric Objects. * isprint: Character Class Functions. * ispunct: Character Class Functions. * isreal: Predicates for Numeric Objects. * isscalar: Predicates for Numeric Objects. * isspace: Character Class Functions. * issquare: Predicates for Numeric Objects. * isstr: Creating Strings. * isstream: I/O Streams. * isstruct: Data Structures. * issymmetric: Predicates for Numeric Objects. * isupper: Character Class Functions. * isvector: Predicates for Numeric Objects. * isxdigit: Character Class Functions. * jet707: blockdiag. * kbhit: Terminal Input. * kendall: Basic Statistical Functions. * keyboard: Terminal Input. * kolmogorov_smirnov_cdf: Distributions. * kolmogorov_smirnov_test: Tests. * kolmogorov_smirnov_test_2: Tests. * kron: Functions of a Matrix. * kruskal_wallis_test: Tests. * krylov: Matrix Factorizations. * kurtosis: Basic Statistical Functions. * laplace_cdf: Distributions. * laplace_inv: Distributions. * laplace_pdf: Distributions. * laplace_rnd: Distributions. * lasterr: Error Handling. * lastwarn: Error Handling. * lcm: Utility Functions. * length: Object Sizes. * lgamma: Special Functions. * lin2mu: Audio Processing. * link: Filesystem Utilities. * linspace: Special Utility Matrices. * list: Lists. * load: Simple File I/O. * loadaudio: Audio Processing. * loadimage: Image Processing. * localtime: Timing Utilities. * log: Utility Functions. * log10: Utility Functions. * log2: Utility Functions. * logistic_cdf: Distributions. * logistic_inv: Distributions. * logistic_pdf: Distributions. * logistic_regression: Models. * logistic_rnd: Distributions. * logit: Basic Statistical Functions. * loglog: Specialized Two-Dimensional Plots. * loglogerr: Specialized Two-Dimensional Plots. * logm: Functions of a Matrix. * lognormal_cdf: Distributions. * lognormal_inv: Distributions. * lognormal_pdf: Distributions. * lognormal_rnd: Distributions. * logspace: Special Utility Matrices. * lqe: cacsd. * lqg: cacsd. * lqr: cacsd. * ls: Current Working Directory. * lsim: cacsd. * lsode: Ordinary Differential Equations. * lsode_options: Ordinary Differential Equations. * lstat: Filesystem Utilities. * ltifr: sysfreq. * lu: Matrix Factorizations. * lyap: numerical. * mahalanobis: Basic Statistical Functions. * manova: Tests. * mcnemar_test: Tests. * mean: Basic Statistical Functions. * meansq: Basic Statistical Functions. * median: Basic Statistical Functions. * menu: Terminal Input. * mesh: Three-Dimensional Plotting. * meshdom: Three-Dimensional Plotting. * meshgrid: Three-Dimensional Plotting. * mkdir: Filesystem Utilities. * mkfifo: Filesystem Utilities. * mktime: Timing Utilities. * mod: Utility Functions. * moddemo: misc. * moment: Basic Statistical Functions. * more: Input and Output. * mplot: Multiple Plots on One Page. * mu2lin: Audio Processing. * multiplot: Multiple Plots on One Page. * nargchk: Multiple Return Values. * newtroot: Evaluation. * nextpow2: Utility Functions. * norm: Basic Matrix Functions. * normal_cdf: Distributions. * normal_inv: Distributions. * normal_pdf: Distributions. * normal_rnd: Distributions. * nper: Financial Functions. * npv: Financial Functions. * nth: Lists. * ntsc2rgb: Image Processing. * null: Basic Matrix Functions. * num2str: Creating Strings. * nyquist: sysfreq. * obsv: sysprop. * ocean: Image Processing. * octave_config_info: System Information. * odessa: Ordinary Differential Equations. * odessa_options: Ordinary Differential Equations. * ols: Linear Least Squares. * oneplot: Multiple Plots on One Page. * ones: Special Utility Matrices. * ord2: blockdiag. * orth: Basic Matrix Functions. * parallel: blockdiag. * pascal_cdf: Distributions. * pascal_inv: Distributions. * pascal_pdf: Distributions. * pascal_rnd: Distributions. * pause: Timing Utilities. * pclose: Controlling Subprocesses. * periodogram: Signal Processing. * perror: Error Handling. * pinv: Basic Matrix Functions. * pipe: Controlling Subprocesses. * place: cacsd. * playaudio: Audio Processing. * plot: Two-Dimensional Plotting. * plot_border: Multiple Plots on One Page. * pmt: Financial Functions. * poisson_cdf: Distributions. * poisson_inv: Distributions. * poisson_pdf: Distributions. * poisson_rnd: Distributions. * polar: Specialized Two-Dimensional Plots. * poly: Polynomial Manipulations. * polyderiv: Polynomial Manipulations. * polyfit: Polynomial Manipulations. * polyinteg: Polynomial Manipulations. * polyreduce: Polynomial Manipulations. * polyval: Polynomial Manipulations. * polyvalm: Polynomial Manipulations. * popen: Controlling Subprocesses. * popen2: Controlling Subprocesses. * postpad: Rearranging Matrices. * pow2: Utility Functions. * ppplot: Basic Statistical Functions. * prepad: Rearranging Matrices. * printf: Formatted Output. * probit: Basic Statistical Functions. * prod: Sums and Products. * prompt: misc. * prop_test_2: Tests. * purge_tmp_files: Two-Dimensional Plotting. * putenv: Environment Variables. * puts: Simple Output. * pv: Financial Functions. * pvl: Financial Functions. * pwd: Current Working Directory. * pzmap: sysprop. * qconj: Quaternions. * qcoordinate_plot: Quaternions. * qderiv: Quaternions. * qderivmat: Quaternions. * qinv: Quaternions. * qmult: Quaternions. * qqplot: Basic Statistical Functions. * qr: Matrix Factorizations. * qtrans: Quaternions. * qtransv: Quaternions. * qtransvmat: Quaternions. * quad: Functions of One Variable. * quad_options: Functions of One Variable. * quaternion: Quaternions. * quit: Quitting Octave. * qz: Matrix Factorizations. * qzhess: Matrix Factorizations. * qzval: numerical. * rand: Special Utility Matrices. * randn: Special Utility Matrices. * randperm: Special Utility Matrices. * range: Basic Statistical Functions. * rank: Basic Matrix Functions. * ranks: Basic Statistical Functions. * rate: Financial Functions. * read_readline_init_file: Customizing readline. * readdir: Filesystem Utilities. * readlink: Filesystem Utilities. * real: Complex Arithmetic. * record: Audio Processing. * rectangle_lw: Signal Processing. * rectangle_sw: Signal Processing. * rehash: Function Files. * rem: Utility Functions. * rename: Filesystem Utilities. * replot: Two-Dimensional Plotting. * repmat: Special Utility Matrices. * reshape: Rearranging Matrices. * residue: Polynomial Manipulations. * reverse: Lists. * rgb2ind: Image Processing. * rgb2ntsc: Image Processing. * RGB_MAP: Image Processing. * rindex: Searching and Replacing. * rldemo: misc. * rlocus: misc. * rmdir: Filesystem Utilities. * roots: Polynomial Manipulations. * rot90: Rearranging Matrices. * round: Utility Functions. * rows: Object Sizes. * run_count: Basic Statistical Functions. * run_history: Commands For History. * run_test: Tests. * save: Simple File I/O. * saveaudio: Audio Processing. * saveimage: Image Processing. * schur: Matrix Factorizations. * sec: Trigonometry. * sech: Trigonometry. * semilogx: Specialized Two-Dimensional Plots. * semilogxerr: Specialized Two-Dimensional Plots. * semilogy: Specialized Two-Dimensional Plots. * semilogyerr: Specialized Two-Dimensional Plots. * set: Two-Dimensional Plotting. * setgrent: Group Database Functions. * setpwent: Password Database Functions. * shg: Two-Dimensional Plotting. * shift: Rearranging Matrices. * show: Two-Dimensional Plotting. * sign: Utility Functions. * sign_test: Tests. * sin: Trigonometry. * sinc: Signal Processing. * sinetone: Signal Processing. * sinewave: Signal Processing. * sinh: Trigonometry. * size: Object Sizes. * skewness: Basic Statistical Functions. * sleep: Timing Utilities. * sort: Rearranging Matrices. * sortcom: misc. * source: Script Files. * spearman: Basic Statistical Functions. * spectral_adf: Signal Processing. * spectral_xdf: Signal Processing. * spencer: Signal Processing. * splice: Lists. * split: Searching and Replacing. * sprintf: Formatted Output. * sqrt: Utility Functions. * sqrtm: Functions of a Matrix. * ss2sys: ss2sys. * ss2tf: misc. * ss2zp: misc. * sscanf: Formatted Input. * stairs: Specialized Two-Dimensional Plots. * starp: misc. * stat: Filesystem Utilities. * statistics: Basic Statistical Functions. * std: Basic Statistical Functions. * stdnormal_cdf: Distributions. * stdnormal_inv: Distributions. * stdnormal_pdf: Distributions. * stdnormal_rnd: Distributions. * step: systime. * str2mat: Creating Strings. * str2num: String Conversions. * strcat: Creating Strings. * strcmp: Searching and Replacing. * strerror: Error Handling. * strftime: Timing Utilities. * strjust: String Conversions. * strptime: Timing Utilities. * strrep: Searching and Replacing. * studentize: Basic Statistical Functions. * subplot: Multiple Plots on One Page. * substr: Searching and Replacing. * subwindow: Multiple Plots on One Page. * sum: Sums and Products. * sumsq: Sums and Products. * svd: Matrix Factorizations. * syl: Functions of a Matrix. * sylvester_matrix: Famous Matrices. * symlink: Filesystem Utilities. * synthesis: Signal Processing. * sys2fir: fir2sys. * sys2ss: ss2sys. * sys2tf: tf2sys. * sys2zp: zp2sys. * sysadd: blockdiag. * sysappend: blockdiag. * syschnames: structaccess. * syschtsam: structaccess. * sysconnect: blockdiag. * syscont: blockdiag. * sysdimensions: structaccess. * sysdisc: blockdiag. * sysdup: blockdiag. * sysgetsignals: structaccess. * sysgettsam: structaccess. * sysgettype: structaccess. * sysgroup: blockdiag. * sysmin: blockdiag. * sysmult: blockdiag. * sysout: sysdisp. * sysprune: blockdiag. * sysreorder: blockdiag. * sysrepdemo: sysstruct. * sysscale: blockdiag. * syssetsignals: structaccess. * syssub: blockdiag. * system: Controlling Subprocesses. * sysupdate: structaccess. * t_cdf: Distributions. * t_inv: Distributions. * t_pdf: Distributions. * t_rnd: Distributions. * t_test: Tests. * t_test_2: Tests. * t_test_regression: Tests. * table: Basic Statistical Functions. * tan: Trigonometry. * tanh: Trigonometry. * tf2ss: misc. * tf2sys: tf2sys. * tf2zp: misc. * tfout: sysdisp. * tic: Timing Utilities. * tilde_expand: Filesystem Utilities. * time: Timing Utilities. * title: Plot Annotations. * tmpfile: Temporary Files. * tmpnam: Temporary Files. * toascii: String Conversions. * toc: Timing Utilities. * toeplitz: Famous Matrices. * tolower: String Conversions. * top_title: Multiple Plots on One Page. * toupper: String Conversions. * trace: Basic Matrix Functions. * triangle_lw: Signal Processing. * triangle_sw: Signal Processing. * tril: Rearranging Matrices. * triu: Rearranging Matrices. * type: Status of Variables. * typeinfo: Data Types. * tzero: sysfreq. * tzero2: sysfreq. * u_test: Tests. * ugain: blockdiag. * umask: Filesystem Utilities. * undo_string_escapes: String Conversions. * uniform_cdf: Distributions. * uniform_inv: Distributions. * uniform_pdf: Distributions. * uniform_rnd: Distributions. * union: Sets. * unlink: Filesystem Utilities. * unwrap: Signal Processing. * usage: Error Handling. * usleep: Timing Utilities. * va_arg: Variable-length Argument Lists. * va_start: Variable-length Argument Lists. * values: Basic Statistical Functions. * vander: Famous Matrices. * var: Basic Statistical Functions. * var_test: Tests. * vec: Rearranging Matrices. * vech: Rearranging Matrices. * vol: Financial Functions. * vr_val: Variable-length Return Lists. * waitpid: Controlling Subprocesses. * warning: Error Handling. * weibull_cdf: Distributions. * weibull_inv: Distributions. * weibull_pdf: Distributions. * weibull_rnd: Distributions. * welch_test: Tests. * wgt1o: blockdiag. * which: Status of Variables. * who: Status of Variables. * whos: Status of Variables. * wiener_rnd: Distributions. * wilcoxon_test: Tests. * xlabel: Plot Annotations. * xor: Finding Elements and Checking Conditions. * ylabel: Plot Annotations. * yulewalker: Signal Processing. * z_test: Tests. * z_test_2: Tests. * zeros: Special Utility Matrices. * zgfmul: numerical. * zgfslv: numerical. * zginit: numerical. * zgreduce: numerical. * zgrownorm: numerical. * zgscal: numerical. * zgsgiv: numerical. * zgshsr: numerical. * zlabel: Plot Annotations. * zp2ss: misc. * zp2sys: zp2sys. * zp2tf: misc. * zpout: sysdisp.  File: octave.info, Node: Operator Index, Prev: Function Index, Up: Top Operator Index ************** * Menu: * !: Element-by-element Boolean Operators. * !=: Comparison Ops. * " <1>: Strings. * ": String Objects. * &: Element-by-element Boolean Operators. * &&: Short-circuit Boolean Operators. * ' <1>: Arithmetic Ops. * ' <2>: Strings. * ': String Objects. * (: Index Expressions. * ): Index Expressions. * *: Arithmetic Ops. * **: Arithmetic Ops. * +: Arithmetic Ops. * ++: Increment Ops. * ,: Matrices. * -: Arithmetic Ops. * --: Increment Ops. * .': Arithmetic Ops. * .*: Arithmetic Ops. * .**: Arithmetic Ops. * .+: Arithmetic Ops. * ./: Arithmetic Ops. * .\: Arithmetic Ops. * .^: Arithmetic Ops. * /: Arithmetic Ops. * ;: Matrices. * <: Comparison Ops. * <=: Comparison Ops. * <>: Comparison Ops. * =: Assignment Ops. * ==: Comparison Ops. * >: Comparison Ops. * >=: Comparison Ops. * [: Matrices. * \: Arithmetic Ops. * ]: Matrices. * ^: Arithmetic Ops. * colon: Ranges. * |: Element-by-element Boolean Operators. * ||: Short-circuit Boolean Operators. * ~: Element-by-element Boolean Operators. * ~=: Comparison Ops.