Mercurial > octave-nkf
view examples/@polynomial/subsref.m @ 18159:f1fa148766d6 stable rc-3-8-0-2
3.8.0 release candidate 2
* configure.ac (OCTAVE_VERSION): Bump to 3.8.0-rc2.
(OCTAVE_RELEASE_DATE): Set to 2013-12-21.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Sat, 21 Dec 2013 14:58:11 -0500 |
parents | bf6da2fbfa4e |
children |
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function b = subsref (a, s) if (isempty (s)) error ("polynomial: missing index"); endif switch (s(1).type) case "()" ind = s(1).subs; if (numel (ind) != 1) error ("polynomial: need exactly one index"); else b = polyval (fliplr (a.poly), ind{1}); endif case "{}" ind = s(1).subs; if (numel (ind) != 1) error ("polynomial: need exactly one index"); else if (isnumeric (ind{1})) b = a.poly(ind{1}+1); else b = a.poly(ind{1}); endif endif case "." fld = s.subs; if (strcmp (fld, "poly")) b = a.poly; else error ("@polynomial/subsref: invalid property \"%s\"", fld); endif otherwise error ("invalid subscript type"); endswitch if (numel (s) > 1) b = subsref (b, s(2:end)); endif endfunction