Fix small typo

The n index was missing.

dsp.tex

@@ -4476,7 +4476,7 @@ \subsection{Διακριτές σχέσεις Kramers-Kronig}
 	\implies x_e(n) = \frac{1}{2π}\int_{-π}^{π} X_R\left(e^{j\omega }\right)e^{j\omega n}\dif \omega 
 	\intertext{Ομοίως:}
 	jX_I\left(e^{j\omega }\right) &= \sum_{n=-\infty}^{\infty} x_o(n)e^{-j\omega n}
-	\implies x_0(n) = \frac{1}{2π} \int_{-π}^{π} jX_I\left(e^{j\omega }\right)e^{j\omega }
+	\implies x_0(n) = \frac{1}{2π} \int_{-π}^{π} jX_I\left(e^{j\omega }\right)e^{j\omega n}
 	\dif\omega
 \end{align*}