// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA
//
// 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 s=%sp_a_sp(a,b)
    // %spas - adds 2 sparse matrices (special cases)
    //!

    if size(a)==[1 1] then
        a=full(a)
        if a==0 then
            s=b,
        else
            s=full(b)+a
        end
    elseif size(b)==[1 1] then
        b=full(b)
        if b==0 then
            s=a
        else
            s=b+full(a)
        end
    end
endfunction