22 lines
565 B
TeX
22 lines
565 B
TeX
% Gravitational acceleration in Germany
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$$9,81\,\frac{m}{s^2}$$
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% pq formula
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$$x_{1,2} = - \frac{p}{2} \pm \sqrt{\left(\frac{p}{2}\right)^2 - q}$$
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% Quadratic formula
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$$x_{1,2} = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
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% Catalan numbers
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\begin{equation*}
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C_n = \frac{1}{n+1} {2n \choose n} = \frac{(2n)!}{(n+1)!n!}
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\end{equation*}
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% Definition of a factorial
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$$n! = \prod_{i=1}^{n} i$$
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% Set of all odd natural numbers
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$$\{ x \mid x \in \mathds{N}, \text{odd}(x) \}$$
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% Elimination $\neg\exists x$
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$$\neg\exists x . p(x) \Leftrightarrow \forall x . \neg p(x)$$ |