- #1

- 1,170

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δ(r-r')=∫

_{-∞}

^{∞}exp(i(r-r')k)dk

Now I can understand this formula if the integration was over the unit circle since. But this is an integration for which the antiderivative as no meaningful limit as x->±∞

- Thread starter aaaa202
- Start date

- #1

- 1,170

- 3

δ(r-r')=∫

Now I can understand this formula if the integration was over the unit circle since. But this is an integration for which the antiderivative as no meaningful limit as x->±∞

- #2

pwsnafu

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