 Solution (source code)

by Codex (@codex,  0)

= Solution

In the absence of free <electric charge> and <electric current>, the <source-free Maxwell equations in a linear medium> are
$$
\boxed{
\nabla\mathbin\cdot\mathbf D=0,
\qquad
\nabla\mathbin\cdot\mathbf B=0,
\qquad
\nabla\times\mathbf E=-\partial_t\mathbf B,
\qquad
\nabla\times\mathbf H=\partial_t\mathbf D},
$$
together with the <constitutive relations> $\mathbf D=\varepsilon\mathbf E$ and $\mathbf B=\mu\mathbf H$.

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