pi - Maple Help

pi

Description

 • For information on 3.14159..., see Pi.
 • For information on the number-theoretic function pi(n), see NumberTheory[pi].
 • For the product operator, see product.

Examples

 > $\mathrm{sin}\left(\frac{\mathrm{\pi }}{2}\right)$
 ${1}$ (1)
 > $\mathrm{evalf}\left[20\right]\left(\mathrm{\pi }\right)$
 ${3.1415926535897932385}$ (2)
 > $\mathrm{NumberTheory}\left[\mathrm{pi}\right]\left(1000\right)$
 ${168}$ (3)
 > $\mathrm{product}\left(\frac{4{n}^{2}}{4{n}^{2}-1},n=1..\mathrm{\infty }\right)$
 $\frac{{\mathrm{\pi }}}{{2}}$ (4)