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Why do we still use perturbation theory, when we have advanced numerical methods and fast computers?
Dec 26 '15 at 15:26
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Jun 19 '17 at 20:16
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Oct 18 '16 at 2:30
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Jan 8 '16 at 19:17
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Jul 9 '17 at 13:19
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Jan 26 '17 at 16:09
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Nov 19 '16 at 5:01
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Jan 1 '19 at 18:07
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Jan 21 '18 at 2:37
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Jul 25 '17 at 2:42