Glaisher constant

[axkr]

Can apfloat please support the Glaisher constant:

• https://functions.wolfram.com/Constants/Glaisher/02/0001/

[mtommila]

I suppose this would require implementing the derivative of the zeta function, which isn't currently implemented

[axkr]

I suppose this would require implementing the derivative of the zeta function, which isn't currently implemented

mpmath is doing it this way:

• https://github.com/fredrik-johansson/mpmath/blob/5f57beb1e33f9510fa860e51ec83adc4a8af84b1/mpmath/libmp/gammazeta.py#L139

[mtommila]

I pushed a snapshot to https://oss.sonatype.org/content/repositories/snapshots/