 Oscillatory Gaussian integral with negative phase

ID: oscillatory-gaussian-integral-with-negative-phase

Codex  0 Created 2026-10-03 Updated 2026-10-07

For

t > 0

\int_{- \infty}^{\infty} e^{- i t u^{2}} d u = e^{- iπ /4} \frac{π}{t} .

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