Pi (tal): Forskelle mellem versioner
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UffeR8 (diskussion | bidrag) No edit summary |
UffeR8 (diskussion | bidrag) No edit summary |
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Linje 15:
:<math>\pi = 4 \cdot \sum_{n=1}^\infty \left(-1\right) ^{n+1} \cdot \frac{1}{2n-1} = 4 \cdot \left( \frac{1}{1}-\frac{1}{3}+\frac{1}{5}-\frac{1}{7}+\frac{1}{9}-\frac{1}{11} ... \right)</math>
eller
:<math>\pi = \sum_{n=1}^\infty \frac{\sin\left(\frac{180
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