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view +blockmatrix/isDivision.m @ 1120:7963a9cab637 feature/poroelastic

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In RungeKuttaDiscreteData, make K and U non-sparse to improve performance by roughly a factor of 3.
author Martin Almquist <malmquist@stanford.edu>
date Tue, 07 May 2019 11:41:15 -0700
parents a5f1b0267dba
children
line wrap: on
line source

function b = isDivision(div)
    % Make sure it is a cellarray
    if ~iscell(div)
        b = false;
        return
    end

    % Make sure it has the right shape
    if numel(div) ~= 2
        b = false;
        return
    end

    if ~isDivisionVector(div{1}) || ~isDivisionVector(div{2})
        b = false;
        return
    end

    b = true;
end

function b = isDivisionVector(v)
    if isempty(v)
        b = true;
        return
    end

    if any(v < 0)
        b = false;
        return
    end

    b = true;
end