∇ ⋅ E = 0 {\displaystyle \nabla \cdot E=0} ∇ × E = − 1 T E {\displaystyle \nabla \times E=-{\frac {1}{T}}E} ∇ ⋅ B = 0 {\displaystyle \nabla \cdot B=0} ∇ × B = − 1 T B {\displaystyle \nabla \times B=-{\frac {1}{T}}B} T = μ ϵ {\displaystyle T=\mu \epsilon }
