Archimedes' constant $\pi$

The constant $\pi$ represents the area of the unit circle, the half-period of trigonometric functions, and many other things in mathematics.

Symbol
$\pi$

Default
3.141592653589793

Used in
$A_e$
$A_{er}$
$A_{fluid}$
$\beta_X$
$\Delta \theta_{kp}$
$h_t$
$\omega$
$\tau_{ar}$
$\theta_{gas}$
$U_{partially}$
$U_{wall}$
OHTC of pipe wall [W/(K.m$^2$)]
$V_{comp}$
Gas volume [m$^3$]
$X_0$
$X_{ar}$
$X_c$
$X_{S1}$
Reactance section 1 [$\Omega$/m]
$X_{S2}$
Reactance section 2 [$\Omega$/m]
$X_{S3}$
Reactance section 3 [$\Omega$/m]
$z_{ar,i}$
$z_{ar,m}$
$z_{ar,o}$
$z_{earth}$
$z_{os}$
$z_{sc,i}$
$z_{sc,m}$
$z_{sc,o}$
$z_{sh,i}$
$z_{sh,m}$
$z_{sh,o}$