Changes
/* Penetration Through Thin Walls Or Surfaces */
The transmission coefficients are calculated for the two parallel and perpendicular polarizations as:
:<math>T_{\|} = \frac{(1-{\Gamma_{\|}}^2) \exp(-jk_2 d (\mathbf{ \hat{k}'' \cdot \hat{n}}))}{ 1-{\Gamma_{\|}}^2 \exp( -2jk_2 d (\mathbf{ \hat{k}'' \cdot \hat{n} }) ) }</math> :<math>T_{\perp} = \frac{(1-{\Gamma_{\perp}}^2) \exp(-jk_2 d (\mathbf{ \hat{k}'' \cdot \hat{n}}))}{ 1-{\Gamma_{\perp}}^2 \exp( -2jk_2 d (\mathbf{ \hat{k}'' \cdot \hat{n} }) ) }</math><!--[[File:frml20.png]]-->
where
