User:Tohline/Math/EQ EllipticIntegral04
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<math>~E(\mu)</math> |
<math>~=</math> |
<math>~ 1 ~+~ \frac{1}{2}\biggl( \ln \frac{4}{k'} - \frac{1}{1\cdot 2}\biggr)(k')^2 ~+~ \frac{1^2\cdot 3}{2^2\cdot 4}\biggl( \ln \frac{4}{k'} - \frac{2}{1\cdot 2} - \frac{1}{3\cdot 4}\biggr)(k')^4 ~+~ \frac{1^2\cdot 3^2\cdot 5}{2^2\cdot 4^2\cdot 6}\biggl( \ln \frac{4}{k'} - \frac{2}{1\cdot 2} - \frac{2}{3\cdot 4} - \frac{1}{5\cdot 6}\biggr)(k')^6 ~+~ \cdots </math> |
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Gradshteyn & Ryzhik (1965), §8.114.3 |
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where: <math>~k^' \equiv (1 - \mu^2)^{1 / 2}</math> |
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