Различия

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--- optics:res2.2 [2020/02/07 17:39] – [д)] root
+++ optics:res2.2 [2020/02/08 09:48] (текущий) – [д)] root
@@ Строка 115: / Строка 115: @@
 $$
 $$
-\frac{2}{\pi\omega^{2}\tau}\left(1-e^{-i\omega\frac{\tau}{2}}\right)=
+\frac{1}{\pi\omega^{2}\tau}\left(2-e^{i\omega\frac{\tau}{2}}-e^{-i\omega\frac{\tau}{2}}\right)=
-\frac{i4e^{-i\omega\frac{\tau}{4}}\sin\left(\omega\frac{\tau}{4}\right)}{\pi\omega^{2}\tau} =
+\frac{2}{\pi\omega^{2}\tau}\left(1-\cos (\omega\frac{\tau}{2})\right)=
-\frac{ie^{-i\omega\frac{\tau}{4}}\text{sinc}\left(\omega\frac{\tau}{4}\right)}{\pi\omega}
+$$
+$$
+\frac{4\sin^2\left(\omega\frac{\tau}{4}\right)}{\pi\omega^{2}\tau} =
+\frac{\tau }{4\pi} \text{sinc}^2\left(\omega\frac{\tau}{4}\right)
 .
 $$