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Oct 29, 2020 at 16:37 history edited Matt L. CC BY-SA 4.0
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Oct 29, 2020 at 16:32 history edited Matt L. CC BY-SA 4.0
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Oct 29, 2020 at 15:35 comment added Matt L. @Frederic: No, the Dirac delta does not equal unity for zero argument.
Oct 29, 2020 at 15:04 comment added Frederic The limit only becomes 2 if $\omega+\omega'=0$ and is 0 otherwise. So, this corresponds to the Dirac function $2\delta(\omega'-\omega)$. I do not see the mistake?
Oct 29, 2020 at 14:45 history answered Matt L. CC BY-SA 4.0