gamma function

[Vickram Ratnam]

Hi,

The gamma function: gamma(-1.8) is wrong on the 14th decimal place!

gamma(-1.8)
mpf('3.18808591111028039124867553323532716863956391866129741806715381936241028063577249148281557253678571408')

Thanks

Vickram

[Oscar Benjamin]

Use a string rather than a float:

In [24]: mpmath.gamma('-1.8')
Out[24]: mpf('3.1880859111102798980588599138396888912736874988148709')

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