differt.em.poynting_vector#
- poynting_vector(e, b)[source]#
Compute the Poynting vector in vacuum from electric \(\vec{E}\) and magnetic \(\vec{B}\) fields.
- Parameters:
e (
Inexact[ArrayLike, '*#batch 3']) – The electrical field.b (
Inexact[ArrayLike, '*#batch 3']) – The magnetic field.
- Return type:
- Returns:
The Poynting vector \(\vec{S}\).
It can be either real or complex-valued.