A..1 Quantities

Table 1: Symbols and descriptions for quantities.

symbol	quantity
$\Delta t$	discrete time-step
$\Delta x$	grid size
$e_{\rm i}$	internal energy density (per mass unit)
$e_{\rm ik}$	total (internal + kinetic) energy
$e_{\rm ikg}$	total (internal + kinetic + potential) energy
$e_{\rm ikb}$	total (internal + kinetic + magnetic) energy
$I_\nu$	frequency-dependent intensity
$\hat{\ensuremath{\mathchoice{\mbox{\boldmath$\displaystyle n$}} {\mbox{\boldmat... ...} {\mbox{\boldmath$\scriptstyle n$}} {\mbox{\boldmath$\scriptscriptstyle n$}}}}$	normal vector of length unity
$\nu$	frequency
$P$	pressure
$\rho$	mass density
$\rho e_{\rm i}$	internal energy density (per volume)
$\bar{\bar{\ensuremath{\mathsf{I}}}}$	unity tensor
$\ensuremath{\mathchoice{\mbox{\boldmath$v_{}$}} {\mbox{\boldmath$v_{}$}} {\mbox{\boldmath$v_{}$}} {\mbox{\boldmath$\scriptscriptstyle v_{}$}}}$	velocity vector