Elips: Perbedaan antara revisi
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Baris 17:
dan
:<math>K \approx \pi \left(a+b \right) \left(1+ \frac{3h}{10+ \sqrt{4-3h}} \right)</math> dimana <math>h = \sqrt {(a - b)^2}{(a + b)^2}</math>
; Keliling III (model integral)
:<math>K = 2\pi a \left[1 - \sum_{n=1}^\infty \left(\frac{(2n-1)!!}{(2n)!!}\right)^2 \frac{e^{2n}}{2n-1}\right] </math>
dan
:<math>K = 2\pi a \left[{1 - \left(\frac{1}{2}\right)^2e^2 - \left(\frac{1\cdot 3}{2\cdot 4}\right)^2\frac{e^4}{3} - \left(\frac{1\cdot 3\cdot 5}{2\cdot 4\cdot 6}\right)^2\frac{e^6}{5} - \cdots}\right]</math>
{{Commons|Category:Parabolas}}
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