change size of images

chapters/chap02/chap02.tex

@@ -189,7 +189,7 @@ in the $R$ group are either recovered or deceased, and thus unable to transmit
 or carry the disease.
 \begin{figure}[h]
   \centering
-  \includegraphics[scale=0.87]{sir_graph.pdf}
+  \includegraphics[width=\textwidth]{sir_graph.pdf}
   \caption{A visualization of the SIR model, illustrating $N$ being split in the
     three groups $S$, $I$ and $R$.}
   \label{fig:sir_model}
@@ -468,7 +468,7 @@ and nonlinear calculation enables MLP's to approximate any function. As Hornik
 
 \begin{figure}[h]
   \centering
-  \includegraphics[scale=0.87]{MLP.pdf}
+  \includegraphics[width=\textwidth]{MLP.pdf}
   \caption{A illustration of an MLP with two hidden layers. Each neuron of a layer
     is connected to every neuron of the neighboring layers. The arrow indicates
     the direction of the forward propagation.}
@@ -604,7 +604,7 @@ which should ultimately yield an approximation of the true value.\\
 
 \begin{figure}[h]
   \centering
-  \includegraphics[scale=0.87]{oscilator.pdf}
+  \includegraphics[width=\textwidth]{oscilator.pdf}
   \caption{Illustration of of the movement of an oscillating body in the
     underdamped case. With $m=1kg$, $\mu=4\frac{Ns}{m}$ and $k=200\frac{N}{m}$.}
   \label{fig:spring}