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Sage fails to evaluate this expression.

asked 2015-03-29 11:12:06 +0200

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Sage doesn't seem to compute correctly 8*sin(pi/9)^3 - 6*sin(pi/9) + 3^(1/2) which is plain zero.

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answered 2015-03-29 12:02:01 +0200

eric_g gravatar image

updated 2015-03-29 12:13:33 +0200

Sage can compute it, but you must help it with reduce_trig():

a = 8*sin(pi/9)^3 - 6*sin(pi/9) + 3^(1/2)
a.reduce_trig()
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Asked: 2015-03-29 11:12:06 +0200

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Last updated: Mar 30 '15