Mercurial > octave
view scripts/miscellaneous/symvar.m @ 28912:0de38a6ef693
maint: Use Octave convention of space after function name in scripts dir.
* cplxpair.m, gradient.m, integral.m, integral3.m, interp2.m, interpft.m,
num2str.m, pol2cart.m, quad2d.m, quadgk.m, quadl.m, repelem.m, sph2cart.m,
convhull.m, delaunay.m, delaunayn.m, movegui.m, print_usage.m,
__strip_html_tags__.m, colormap.m, gray2ind.m, imformats.m, importdata.m,
javachk.m, condest.m, isbanded.m, krylov.m, lscov.m, rref.m, inputParser.m,
publish.m, symvar.m, validateattributes.m, ode15i.m, ode15s.m, ode23.m,
ode23s.m, ode45.m, fminbnd.m, fminsearch.m, glpk.m, qp.m, get_forge_pkg.m,
installed_packages.m, annotation.m, axis.m, camorbit.m, campos.m, camva.m,
camzoom.m, daspect.m, legend.m, pbaspect.m, __gnuplot_legend__.m, light.m,
patch.m, plotyy.m, __pie__.m, reducepatch.m, ribbon.m, streamline.m, trisurf.m,
figure.m, ndgrid.m, __gnuplot_draw_axes__.m, __opengl_print__.m, padecoef.m,
polygcd.m, ppval.m, spline.m, union.m, bicg.m, bicgstab.m, cgs.m, eigs.m,
gmres.m, pcg.m, pcr.m, __alltohandles__.m, __sprand__.m, qmr.m, tfqmr.m,
betaincinv.m, cosint.m, gammainc.m, discrete_cdf.m, discrete_inv.m,
discrete_rnd.m, base2dec.m, strtok.m, compare_plot_demos.m,
html_compare_plot_demos.m, speed.m, test.m, weboptions.m, webread.m, webwrite.m:
Use Octave convention of space after function name and before '(' in scripts
directory.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 13 Oct 2020 18:17:29 -0700 |
parents | bd51beb6205e |
children | 885d35d5fde3 |
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######################################################################## ## ## Copyright (C) 2008-2020 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## This file is part of Octave. ## ## Octave 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 3 of the License, or ## (at your option) any later version. ## ## Octave 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 Octave; see the file COPYING. If not, see ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {@var{vars} =} symvar (@var{str}) ## Identify the symbolic variable names in the string @var{str}. ## ## Common constant names such as @code{i}, @code{j}, @code{pi}, @code{Inf} and ## Octave functions such as @code{sin} or @code{plot} are ignored. ## ## Any names identified are returned in a cell array of strings. The array is ## empty if no variables were found. ## ## Example: ## ## @example ## @group ## symvar ("x^2 + y^2 == 4") ## @result{} @{ ## [1,1] = x ## [2,1] = y ## @} ## @end group ## @end example ## @end deftypefn function vars = symvar (str) vars = argnames (inline (str)); ## Correct for auto-generated 'x' variable when no symvar was found. if (numel (vars) == 1 && strcmp (vars{1}, "x") && ! any (str == "x")) vars = {}; endif endfunction %!assert (symvar ("3*x + 4*y + 5*cos (z)"), {"x"; "y"; "z"}) %!assert (symvar ("sin ()^2 + cos ()^2 == 1"), {}) %!assert (symvar ("1./x"), {"x"})