mirror of
https://github.com/vale981/TUD_MATH_BA
synced 2025-03-05 09:31:39 -05:00
39 lines
No EOL
851 B
TeX
39 lines
No EOL
851 B
TeX
\documentclass[12pt]{article}
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\usepackage[T1]{fontenc}
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\usepackage{amsmath}
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\usepackage{bigdelim}
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\newcommand\undermat[2]{%
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\makebox[0pt][l]{$\smash{\underbrace{\phantom{%
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\begin{matrix}#2\end{matrix}}}_{\text{$#1$}}}$}#2}
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\begin{document}
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\begin{align*}
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A_{k} &= \left.\left(
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\begin{array}{ccc|ccc}
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1 & & & 0\\
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& \ddots & & & \ddots\\
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& & 1 & & & 0
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\end{array}
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\right)\right\}N+1\\[-0.5\normalbaselineskip]
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& \hspace{2em}\underbrace{\hspace{2cm}}_{N+1}
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\hspace{\tabcolsep}
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\underbrace{\hspace{1.7cm}}_{2N+1}
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\end{align*}
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\begin{align}
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\begin{array}{cccc|ccccc}
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\ldelim({7}{*} &d_1 &&&&&& \rdelim){7}{*}& \\
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&& \ddots &&&&&& \\
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&& & d_r &&&&&\\ \cline{2-7}
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&&&& 0&&&& \rdelim\}{3}{*}[$m-r$] \\
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&&&&& \ddots&&& \\
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&&&& \undermat{n-r}{&& 0&&}
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\end{array}\notag
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\end{align}
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\end{document} |