/usr/share/octave/packages/linear-algebra-2.2.0/@kronprod/rdivide.m is in octave-linear-algebra 2.2.0-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | ## Copyright (C) 2010 Soren Hauberg
##
## This program 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, or (at your option)
## any later version.
##
## This program 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 this file. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} rdivide (@var{a}, @var{b})
## XXX: Write help text.
## @end deftypefn
function retval = rdivide (a, b)
## Check input
if (nargin < 2)
print_usage ();
endif
if (!ismatrix (a) || !ismatrix (a))
error ("rdivide: input arguments must be scalars or matrices");
endif
if (!size_equal (a, b) || !isscalar (b))
error ("times: nonconformant arguments (op1 is %dx%d, op2 is %dx%d)",
rows (a), columns (a), rows (b), columns (b));
endif
## Take action depending on input
if (isscalar (a) && isa (b, "kronprod"))
retval = kronprod (a ./ b.A, 1 ./ b.B);
elseif (isa (a, "kronprod") && isscalar (b))
if (numel (a.A) < numel (a.B))
retval = kronprod (a.A ./ b, a.B);
else
retval = kronprod (a.A, a.B ./ b);
endif
elseif (isa (a, "kronprod") && isa (b, "kronprod"))
## XXX: Can we do something smarter here?
retval = full (a) ./ full (b);
else
## XXX: We should probably handle sparse cases and all sorts of other
## situations better here
retval = full (a) ./ full (b);
endif
endfunction
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