Recent content by bemer42

  1. B

    Chebyshev Density and Potential/Runge Phenomenon

    Hello, Is this question from the exercises of chapter 5 of the text 'Spectral Methods' by Trefethen? If so, I believe equation (5.9) of that text is wrong. The potential should have the form phi(z) = log(|z+sqrt(z^2 - 1)/2|) so that the minus sign is actually a plus. I'm working on...