Mathematical and physical constants

QQE

e = 2.718282

QQPI

$\pi$ = 3.141593

QQ2PI

2$\pi$

QQPIH

$\pi$/2

QQRADP

180/$\pi$

QQC

speed of light = 2.997925E10 cm/sec

QQIRP

speed of light in units cm / KGauss (inverse track bending radius $\rightarrow$ track momentum)

QQH

Planck constant / 2$\pi$ = 6.582173E-25 GeV sec

QQHC

QQH * QQC

Note: The standard ALEPH constants (ALCONS) are also available.