Rational powers and negative bases.

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Edward K

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Mar 4, 2020, 1:57:38 PM3/4/20
to speedcrunch

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Usuall this is NaN ( unless complex ).


davitof

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Mar 4, 2020, 2:25:44 PM3/4/20
to speedcrunch
Edward,

IIRC, (-8) ^ (1/2) would be a NaN, but (-8) ^ (1/3) is a number : -2, (-2) * (-2) * (-2) = (-8)

(-8) ^ (2/3) = ( (-8) ^ (1/3) )  ^ (2) = (-2)  ^ 2 = 4

So if I am correct, SpeedCrunch seems wrong, but not in the way you said.

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