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This is a mathematica exercise that I have to do, where $y(x) = x - \epsilon \sin(2y)$ and it wants me to express the solution $y$ of the equation as a power series in $ \epsilon$.

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    And what is the question?2012-06-15
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    Note that this is the Kepler equation; much has been written about this.2012-06-15
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    Thank you. I'll look this up.2012-06-15
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    I don't see any derivatives, so I removed the "differential equations" tag.2012-06-15
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    I am eager to know a solution...2012-10-10

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