signum-funktion hinzugefügt
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math.tex
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math.tex
@ -21,6 +21,7 @@
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\newcommand{\re}[1]{{\text{Re}\left( #1 \right)}}
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\newcommand{\im}[1]{{\text{Im}\left( #1 \right)}}
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\newcommand{\tr}{{\text{tr}}}
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\newcommand{\sign}{{\text{sign}}}
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\newcommand{\QED}{\begin{large}\textbf{\checkmark}\end{large}}
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\newcommand{\cequiv}{\stackrel{\scriptscriptstyle\wedge}{=}}
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