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--- playground:playground [2015/11/25 20:44]
lpodolski Test pluginu MathJax
+++ playground:playground [2021/09/23 08:51] (current)
@@ Line 21: / Line 21: @@
     & = \sum_{n\geq 0} \frac{x^n}{n!}
 \end{align*}
+==== Numeracja i referencje ====
+In equation \eqref{eq:sample}, we find the value of an
+interesting integral:
+\begin{equation}
+  \int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15}
+  \label{eq:sample}
+\end{equation}