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42 votes
4 answers
4k views

Are these fast convergent series for $\log(2)$, $\log(3)$ and $\log(5)$ already known and proven?

Now that some of the previously MSE formulae that I left here have been applied Dec.2023 to compute high precision record values ($10^{12}$ decimal digits) of trascendental constants $\Gamma(1/3)$ (Eq....
Jorge Zuniga's user avatar
  • 2,836
13 votes
1 answer
1k views

Apéry's constant $\zeta(3)$ fastest convergent series

UPDATE Feb.02.2024 The series below, Eq.(3) for computing and Eq.(2) for verifying, were applied by Andrew Sun on Dec.22.2023 to get over $2\cdot10^{12}$ decimal digits and break the number of ...
Jorge Zuniga's user avatar
  • 2,836
4 votes
2 answers
337 views

Is this BBP-type formula for $\ln 31$, $\ln 127$, and other Mersenne numbers also true?

In this post, a binary BBP-type formula for Fermat numbers $F_m$ was discussed as (with a small tweak), $$\ln(2^b+1) = \frac{b}{2^{a-1}}\sum_{n=0}^\infty\frac{1}{(2^a)^n}\left(\sum_{j=1}^{a-1}\frac{...
Tito Piezas III's user avatar