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view spzeros.m @ 1031:2ef20d00b386 feature/advectionRV

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For easier comparison, return both the first order and residual viscosity when evaluating the residual. Add the first order and residual viscosity to the state of the RungekuttaRV time steppers
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Thu, 17 Jan 2019 10:25:06 +0100
parents 13d2f20c0c0d
children
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function S = spzeros(varargin)
    switch length(varargin)
        case 2
            S = sparse(varargin{1}, varargin{2});
        case 1
            v = varargin{1};
            switch length(v)
                case 1
                    S = sparse(v,v);
                case 2
                    S = sparse(v(1), v(2));
                otherwise
                    error('Input must be either one integer, two integers or a vector with two integers');
            end
        otherwise
            error('Too many input arguments.');
    end
end