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Sage does not simplify trigonometric expresion

asked 2014-09-23 07:26:55 -0500

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the sage does not simplify the expression

a(phi) = (1 - cos(phi)) / sin(phi)

to tan(phi/2)

what wolfram alpha does...

is this a bug or a feature??

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answered 2014-09-23 08:19:05 -0500

kcrisman gravatar image

You can go the other way around, I think, but not this way. Somewhat surprisingly, Maxima doesn't even seem to support this. But I would be happy to be shown wrong.

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Asked: 2014-09-23 07:26:55 -0500

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Last updated: Sep 23 '14