Why doesn't The Feynman Lectures consider the possibility of negative ##\alpha## when it says that ##e^{+2\alpha\rho}## is a rapidly increasing exponential (just below http://feynmanlectures.caltech.edu/III_19.html#mjx-eqn-EqIII1923) ?(adsbygoogle = window.adsbygoogle || []).push({});

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# I Feynman Lectures: negative alpha for solving Schrödinger equation

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