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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 2010 - INRIA - Serge Steer
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function a=%r_cumprod(varargin)
//prod of a rational matrix
// If we call cumprod with 3 arguments, the third is optional for rational matrices.
a = varargin(1)
dims = size(a);
nargs = size(varargin);
select nargs
case 1
d = "*";
case 2
if or(varargin(2) == ["native", "double"]) then
d = "*";
else
d = varargin(2);
end
case 3
d = varargin(2);
else
error(msprintf(_("%s: Wrong number of input argument(s): %d to %d expected.\n"),"cumprod", 1, 3));
end
// Check second argument : d
select type(d)
case 1
if size(d,'*') <> 1 then
error(msprintf(_("%s: Wrong size for input argument #%d: A scalar expected.\n"),"cumprod", 2))
end
if int(d) <> d | d < 0 then
error(msprintf(_("%s: Wrong value for input argument #%d: Integer >= %d expected.\n"),"cumprod", 2, 1))
end
case 10
if size(d,'*') <> 1 then
error(msprintf(_("%s: Wrong size for input argument #%d: A string expected.\n"),"cumprod",2))
end
if and(d<>["r","c","*","m"]) then
error(msprintf(_("%s: Wrong value for input argument #%d: Must be in the set {%s}.\n"),..
"cumprod",2,"""*"",""r"",""c"",""m"""))
end
pos = [1,2,0,find(dims>1,1)];
d=pos(find(d==["r","c","*","m"]))
else
error(msprintf(_("%s: Wrong type for input argument #%d: A string or scalar expected.\n"),"cumprod",2))
end
if d==0 then //'*'
a=rlist(cumprod(a.num),cumprod(a.den),a.dt)
if simp_mode() then
a=simp(a)
end
elseif or(d==[1 2]) then
a=rlist(cumprod(a.num,d),cumprod(a.den,d),a.dt)
if simp_mode() then
a=simp(a)
end
else
a=a
end
endfunction
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