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Lines 6 to 11 in 51791ef

    
           \[ 
        
           Y_{br} = \begin{bmatrix} 
        
               \frac{1}{{\tau^2}} \cdot (y_s + j\frac{b_c}{2}) & -y_s \cdot \frac{1}{{\tau e^{-j\phi}}} \\ 
        
               -y_s \cdot \frac{1}{{\tau e^{j\phi}}} & (y_s + j\frac{b_c}{2}) 
        
           \end{bmatrix} 
        
           \]

	\[
	Y_{br} = \begin{bmatrix}
	\frac{1}{{\tau^2}} \cdot (y_s + j\frac{b_c}{2}) & -y_s \cdot \frac{1}{{\tau e^{-j\phi}}} \\
	-y_s \cdot \frac{1}{{\tau e^{j\phi}}} & (y_s + j\frac{b_c}{2})
	\end{bmatrix}
	\]