I find that Gamma(e) is close to Pi/2 and Zeta(e) is close to 4/Pi. So I have a question:
$\Gamma (e) = \pi /2$
$\zeta (e) = 4/\pi $
Is it true in fact?
Maple says $\Gamma(e)=1.567468255$, $\pi/2=1.570796327$, $\zeta(e)=1.269009604$, $4/\pi=1.273239544$.