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-rw-r--r--info/examples/Math/10-05-2.ltx28
1 files changed, 12 insertions, 16 deletions
diff --git a/info/examples/Math/10-05-2.ltx b/info/examples/Math/10-05-2.ltx
index e30977669e..6aeb106804 100644
--- a/info/examples/Math/10-05-2.ltx
+++ b/info/examples/Math/10-05-2.ltx
@@ -1,37 +1,33 @@
%%
%% Ein Beispiel der DANTE-Edition
%% Mathematiksatz mit LaTeX
-%% 2. Auflage
-%%
-%% Beispiel 10-05-2 auf Seite 222.
-%%
-%% Copyright (C) 2012 Herbert Voss
+%% 3. Auflage
+%% Beispiel 10-05-2 auf Seite 221.
+%% Copyright (C) 2018 Herbert Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
-%%
%% See http://www.latex-project.org/lppl.txt for details.
%%
-%%
%% ====
% Show page(s) 1
%%
%%
-\documentclass[]{exaarticle}
+\documentclass[10pt]{screxa}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\AtBeginDocument{\setlength\parindent{0pt}}
-\StartShownPreambleCommands
-\usepackage{amsmath,esint} \newcommand*\diff{\mathop{}\!\mathrm{d}}
-\StopShownPreambleCommands
+%StartShownPreambleCommands
+\usepackage{amsmath,esint,libertinust1math} \newcommand*\diff{\mathop{}\!\mathrm{d}}
+%StopShownPreambleCommands
\begin{document}
\begin{align*}
-\biggl(\int_{-\infty}^\infty e^{-x^2}\,dx\biggr)^2
- &= \int_{-\infty}^\infty\int_{-\infty}^\infty e^{-(x^2+y^2)}\diff x\diff y \\
- &= \int_0^{2\pi}\int_0^\infty e^{-r^2}r\diff r\diff\theta \\
- &= \int_0^{2\pi}\biggl(-{e^{-r^2}\over2}
+\biggl(\int_{-\infty}^{\infty} e^{-x^2}\diff x\biggr)^2
+ &= \int_{-\infty}^{\infty}\int_{-\infty}^\infty e^{-(x^2+y^2)}\diff x\diff y \\
+ &= \int_0^{2\uppi}\int_0^{\infty} e^{-r^2}r\diff r\diff\theta \\
+ &= \int_0^{2\uppi}\biggl(-{e^{-r^2}\over2}
\bigg\vert_{r=0}^{r=\infty}\,\biggr)\diff\theta\\
- &= \pi \tag*{q.e.d.}
+ &= \uppi \tag*{q.e.d.}
\end{align*}
\end{document}