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fixed error
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4 changed files with 4 additions and 4 deletions
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@ -84,13 +84,13 @@
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&= 1\\
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\det(\gamma_1'(t), n(t)) &= \left \|
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\begin{pmatrix}
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- \cos \frac{t}{r} & - \sin \frac{t}{r}\\
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- \sin \frac{t}{r} & \cos \frac{t}{r}
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- \sin \frac{t}{r} & - \cos \frac{t}{r}\\
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\cos \frac{t}{r} & - \sin \frac{t}{r}
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\end{pmatrix}
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\right \|\\
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&= -1
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&= (- \sin \frac{t}{r})^2 - (- \cos \frac{t}{r}) \cdot \cos \frac{t}{r}\\
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&= 1
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\end{align*}
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\todo{oO .. da sollte +1, nicht -1 stehen!}
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Die Krümmung ist für jedes $t$ konstant $\frac{1}{r}$, da gilt:
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\begin{align*}
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