e π i + 1 = 0 {\displaystyle e^{\pi i}+1=0}
∇ × E = − ∂ B ∂ t {\displaystyle \nabla \times {\boldsymbol {E}}=-{\frac {\partial {\boldsymbol {B}}}{\partial t}}}
∇ × H = i + ∂ D ∂ t {\displaystyle \nabla \times {\boldsymbol {H}}={\boldsymbol {i}}+{\frac {\partial {\boldsymbol {D}}}{\partial t}}}
∇ ⋅ B = 0 {\displaystyle \nabla \cdot {\boldsymbol {B}}=0}
∇ ⋅ D = ρ {\displaystyle \nabla \cdot {\boldsymbol {D}}=\rho }
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