Add example for aligned equations.

chapters/impl.tex

@@ -46,6 +46,20 @@ \subsection{Egyenletek, matematika} % Equations, formulas
 e^{i \times \pi} + 1 = 0
 \end{equation}
 
+Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Nullam pulvinar purus at pharetra elementum.
+Aequationes adsignans aequationis signum:
+\begin{align}
+	A & = \frac{\pi r^2}{2} \\
+	& = \frac{1}{2} \pi r^2
+\end{align}
+
+Proin tempor risus a efficitur condimentum. Cras lobortis ligula non sollicitudin euismod. Fusce non pellentesque nibh, non elementum tellus.
+Omissa numeratione aliquarum aequationum:
+\begin{align}
+	f(u) & =\sum_{j=1}^{n} x_jf(u_j) \nonumber \\
+	& =\sum_{j=1}^{n} x_j \sum_{i=1}^{m} a_{ij}v_i \nonumber \\
+	& =\sum_{j=1}^{n} \sum_{i=1}^{m} a_{ij}x_jv_i
+\end{align}
 
 \section{Forráskódok} % Source code samples
 
@@ -87,8 +101,8 @@ \section{Forráskódok} % Source code samples
 
 \subsection{Algoritmusok} % Algorithms
 
-A general Interval Branch and Bound algorithm is shown in Algorithm~\ref{alg:ibb}. One of the following selection rules is applied in Step \ref{step:selrule}.\\
-Példa forrása: \href{https://www.inf.u-szeged.hu/actacybernetica/}{Acta Cybernetica (ez egy link)}.
+A general Interval Branch and Bound algorithm is shown in Algorithm~\ref{alg:ibb}. An appropriate selection rule is applied in Step~\ref{step:selrule}.\\
+Source of example: \href{https://www.inf.u-szeged.hu/actacybernetica/}{Acta Cybernetica (this is a hyperlink)}.
 
 \begin{algorithm}[H]
 \caption{A general interval B\&B algorithm}