At 08:17 AM 4/21/2008, Dick Moores wrote:
>At 07:40 PM 4/20/2008, John Fouhy wrote:
> >If you're going to be working with complex numbers, you might be
> >better off looking at scipy or some other module that provides more
> >mathematical grunt.
>
>Try mpMath (<http://code.google.com/p/mpmath/>)
>
>With version 0.7:
>
> >>> from mpmath import power, mpf
> >>> print power(-20,(1.0/3.0))
>(1.35720880829745 + 2.3507546124512j)
I needn't have imported mpf
>>> from mpmath import power
>>> print power(-20,(1.0/3.0))
(1.35720880829745 + 2.3507546124512j)
Dick
>Or, to a precision of, say, 43:
>
> >>> mp.dps = 43
> >>> print power(-20,(1.0/3.0))
>(1.357208808297453347178047801626363199806658 +
>2.350754612451197324056065041655768179779947j)
>
>Dick Moores
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