Electrodynamics/Notation

This book uses a consistent notation for its equations. We will describe the symbols we use here, as well as other ways that those concepts are notated in other books.

$\mathrm{\nabla }$: Gradient operator

$\mathrm{\nabla }$²: Laplacian operator

$◻$: d'Alembertian operator

A: Area

A: Magnetic potential field

B: Magnetic field

c: Speed of light

D:

E: Electric Field

F_e: Electric force vector

F_m: Magnetic force vector

F: Field Tensor

G: Magnetic Field Tensor

H:

I: Current, in amperes

j: Electric current

j: Electric current density

k: Coulomb's Constant

K: Magnetic Constant

l: length

L: Lorentz transformation matrix

M: Magnetization field

n: Normal vector

φ: Electric potential function

r: Scalar distance

r, θ, z: Cylindrical coordinates

r, θ, ρ: Spherical coordinates

r: Distance vector

R: Rotation matrix

σ: Charge density

T_E: Electric stress tensor

T_M: Magnetic stress tensor

V: Volume

x, y, z: Cartesian Coordinates