Given this formula
$\pi = \frac{\log(-1)}{\sqrt{-1}}$
How does WolframAlpha derive these other series representations?
The only one I recognize is the Leibniz formula for $\pi$
$$4\sum_{k=0}^{\infty} \frac{(-1)^k}{1+2k}$$
Given this formula
$\pi = \frac{\log(-1)}{\sqrt{-1}}$
How does WolframAlpha derive these other series representations?
The only one I recognize is the Leibniz formula for $\pi$
$$4\sum_{k=0}^{\infty} \frac{(-1)^k}{1+2k}$$
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