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annotate examples/code/@polynomial/subsref.m @ 19225:c8240a60dd01

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Add penny.mat to build system. * examples/data/penny.mat: New example data file. * examples/data/Makefile.am: Automake file for new directory of example data files. * examples/Makefile.am: Change to be just a pass-through to the subdirectories code/ and data/. * examples/@FIRfilter/FIRfilter.m, examples/@FIRfilter/FIRfilter_aggregation.m, examples/@FIRfilter/display.m, examples/@FIRfilter/module.mk, examples/@FIRfilter/subsasgn.m, examples/@FIRfilter/subsref.m, examples/@polynomial/display.m, examples/@polynomial/double.m, examples/@polynomial/end.m, examples/@polynomial/get.m, examples/@polynomial/module.mk, examples/@polynomial/mtimes.m, examples/@polynomial/numel.m, examples/@polynomial/plot.m, examples/@polynomial/polynomial.m, examples/@polynomial/polynomial_superiorto.m, examples/@polynomial/polyval.m, examples/@polynomial/roots.m, examples/@polynomial/set.m, examples/@polynomial/subsasgn.m, examples/@polynomial/subsref.m, examples/COPYING, examples/addtwomatrices.cc, examples/celldemo.cc, examples/embedded.cc, examples/fortrandemo.cc, examples/fortransub.f, examples/funcdemo.cc, examples/globaldemo.cc, examples/helloworld.cc, examples/make_int.cc, examples/mex_demo.c, examples/mycell.c, examples/myfeval.c, examples/myfevalf.f, examples/myfunc.c, examples/myhello.c, examples/mypow2.c, examples/myprop.c, examples/myset.c, examples/mysparse.c, examples/mystring.c, examples/mystruct.c, examples/oct_demo.cc, examples/oregonator.cc, examples/oregonator.m, examples/paramdemo.cc, examples/standalone.cc, examples/standalonebuiltin.cc, examples/stringdemo.cc, examples/structdemo.cc, examples/unwinddemo.cc: Move current example files to examples/code/ directory. * configure.ac: Add Makefiles in examples/code and examples/data directories. * build-aux/common.mk: Define octdatadir variable. * doc/interpreter/Makefile.am: Change location of External Code Interface examples to examples/code directory. * doc/interpreter/munge-texi.pl: Expand EXAMPLEFILE macro to examples/code directory.
author Rik <rik@octave.org>
date Tue, 19 Aug 2014 14:32:44 -0700
parents examples/@polynomial/subsref.m@bf6da2fbfa4e
children
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1 function b = subsref (a, s)
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2 if (isempty (s))
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3 error ("polynomial: missing index");
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4 endif
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5 switch (s(1).type)
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6 case "()"
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7 ind = s(1).subs;
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8 if (numel (ind) != 1)
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9 error ("polynomial: need exactly one index");
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10 else
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11 b = polyval (fliplr (a.poly), ind{1});
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12 endif
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13 case "{}"
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14 ind = s(1).subs;
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15 if (numel (ind) != 1)
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16 error ("polynomial: need exactly one index");
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17 else
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18 if (isnumeric (ind{1}))
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19 b = a.poly(ind{1}+1);
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20 else
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21 b = a.poly(ind{1});
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22 endif
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23 endif
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24 case "."
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25 fld = s.subs;
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26 if (strcmp (fld, "poly"))
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27 b = a.poly;
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28 else
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29 error ("@polynomial/subsref: invalid property \"%s\"", fld);
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30 endif
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31 otherwise
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32 error ("invalid subscript type");
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33 endswitch
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34 if (numel (s) > 1)
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35 b = subsref (b, s(2:end));
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36 endif
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37 endfunction