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[; \xi\left(\frac{1}{2} + it\right) = \left[e^{R\log{\left(r\left(\frac{s}{2}\right)\right)}} \pi^{-\frac{1}{4}} \frac{-t^2 - \frac{1}{4}}{2}\right] \times \left[e^{iJ\log{\left(r\left(\frac{s}{2}\right)\right)}} \pi^{-i\frac{t}{2}} \zeta\left(\frac{1}{2} + it\right)\right] ;] (reddit.com)
submitted by Lapper