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view +util/semidiscrete2function.m @ 993:44e7e497c3b7 feature/timesteppers

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Make time.rk.General accept a butcher tableau instead of a string to choose method. String variant implemented as a static method
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 09 Jan 2019 11:14:16 +0100
parents 48b6fb693025
children
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function F = semidiscrete2function(D,S)
    % TODO: Find threshhold when sparse makes sense.
    % TODO: Why does having the spase block slow down convergence.m (or does it?)
    if size(D,1) > 500
        D = sparse(D);
    end

    if ~isa(S,'function_handle')
        F = @(w,t)(D*w + S);
    else
        F = @(w,t)(D*w + S(t));
    end
end