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view isEquidistant.m @ 914:50cafc4b9e40 feature/utux2D

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Make default_field overwrite if field exists but is empty. Refactor interface method in Utux2d.
author Martin Almquist <malmquist@stanford.edu>
date Sun, 25 Nov 2018 21:09:22 -0800
parents b43c4d841afe
children
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% Tests if consecutive elements of vector v are euidistant
function b = isEquidistant(v)
    if length(v) < 2
        error('sbplib:isEquidistant:inputTooShort', 'Input vector is too short');
    end

    tol = 1e-8;

    d = v(2:end) - v(1:end-1);
    err = abs(d - d(1));

    relErr = err./abs(d);

    I_zero = find(d < tol);

    relErr(I_zero) = err(I_zero);

    b = all(relErr < tol);
end