chore: add sum ampl graph

ZM_05.tex

@@ -308,6 +308,65 @@ R_1=1k\Omega, R_2=1k\Omega, R_{zp}=1k\Omega
   \end{minipage}
 \end{table}
 
+\newpage
+\subsection{Graf napěťových charakteristik}
+\begin{figure}[!hbt]
+\centering
+\begin{tikzpicture}
+\begin{axis}[
+    xlabel={Počet měření},
+    ylabel={$U_1$, $U_2$, $U_v$},
+    xmin=0, xmax=7,
+    ymin=-8, ymax=6,
+    xtick={1,2,3,4,5,6},
+    ytick={-7.5,-6.5,-5.5,-4.5,0,1,2,3,4,5},
+    legend pos=north east,
+    legend style={at={(0.95,0.50)},anchor=north east},
+    ymajorgrids=true,
+    grid style=dashed,
+    line width=0.7pt,
+    mark size=1.5pt,
+]
+
+    \addplot[
+    color=black,
+    dash pattern=on 1pt off 3pt on 3pt off 3pt,
+    mark=*,
+    mark options={solid},
+    smooth
+    ]
+    coordinates {
+      (1,0)(2,0.5)(3,1)(4,1.5)(5,2)(6,2.5)
+    };
+    \addlegendentry{$U_1$}
+    \addplot[
+    color=violet,
+    dash pattern=on 1pt off 3pt on 3pt off 3pt,
+    mark=*,
+    mark options={solid},
+    smooth
+    ]
+    coordinates {
+      (1,5)(2,5)(3,5)(4,5)(5,5)(6,5)
+    };
+    \addlegendentry{$U_2$}
+    \addplot[
+    color=teal,
+    dash pattern=on 1pt off 3pt on 3pt off 3pt,
+    mark=*,
+    mark options={solid},
+    smooth
+    ]
+    coordinates {
+      (1,-5)(2,-5.5)(3,-6)(4,-6.5)(5,-7)(6,-7.5)
+    };
+    \addlegendentry{$U_2$}
+
+\end{axis}
+\end{tikzpicture}
+\caption{Napěťová charakteristika součtového zesilovače}
+\end{figure}
+
 \newpage
 \section{Ověření vlastností rozdílového zesilovače}
 \subsection{Konstantní hodnoty}