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@ -168,12 +168,12 @@
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\begin{tablebox}{l|l|l}
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\begin{tablebox}{l|l|l}
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\textbf{x,y} & \textbf{(in Grad)} & \textbf{(im Bogenmaß)} \\ \hline
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\textbf{x,y} & \textbf{(in Grad)} & \textbf{(im Bogenmaß)} \\ \hline
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$x > 0, y \ge 0$ & $\varphi = \arctan \cfrac{y}{x} $ & $\varphi = arctan \cfrac{y}{x}$ \\
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$a > 0, b \ge 0$ & $\varphi = \arctan \cfrac{b}{a} $ & $\varphi = arctan \cfrac{b}{a}$ \\
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$x < 0$ & $\varphi = \arctan \cfrac{y}{x} + 180^\circ $ & $\varphi = arctan \cfrac{y}{x} + \pi $ \\
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$a < 0$ & $\varphi = \arctan \cfrac{b}{a} + 180^\circ $ & $\varphi = arctan \cfrac{b}{a} + \pi $ \\
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$x > 0, y \le 0 $ & $\varphi = \arctan \cfrac{y}{x} + 360^\circ $ & $\varphi = \arctan \cfrac{y}{x} + 2\pi $ \\
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$a > 0, b \le 0 $ & $\varphi = \arctan \cfrac{b}{a} + 360^\circ $ & $\varphi = \arctan \cfrac{b}{a} + 2\pi $ \\
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$x = 0, y > 0 $ & $\varphi = 90^\circ $ & $\varphi = \cfrac{\pi}{2} $ \\
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$a = 0, b > 0 $ & $\varphi = 90^\circ $ & $\varphi = \cfrac{\pi}{2} $ \\
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$x = 0, y < 0 $ & $\varphi = 270^\circ $ & $\varphi = \cfrac{3}{2}\pi $ \\
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$a = 0, b < 0 $ & $\varphi = 270^\circ $ & $\varphi = \cfrac{3}{2}\pi $ \\
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$x = 0, y = 0 $ & $\varphi = 0^\circ $ & $\varphi = 0 $ \\
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$a = 0, b = 0 $ & $\varphi = 0^\circ $ & $\varphi = 0 $ \\
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\end{tablebox}
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\end{tablebox}
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