I've read a few books on solving differential equations and they all talk about inner products with respect to weight functions. The examples always read something like that "Using the weight function w(x) = blah blah show that the solutions of the differential equations are orthogonal"(adsbygoogle = window.adsbygoogle || []).push({});

We're always given the weight function. I was wondering if there was a general method to finding the weight function?

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# Determining Weight Functions

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