I'm working on a project that requires me to numerically integrate the Planck spectral distribution. The object is to find the median wavelength, with exactly 50% of the radiance on either side. I'm using a standard composite Simpson rule method and I get good convergence with temps around 5000K. For temps at and above 7000K, I can't get convergence. Is there a better scheme to use for this application?(adsbygoogle = window.adsbygoogle || []).push({});

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# Numerically integrating the Planck distribution

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