Bode Magnitude

$H(s)=k\frac{(s-z_1)\dots (s-z_m)}{(s-p_1)\dots (s-p_n)}\to 20{\log }_{10}|H(j\omega )|=20{\log }_{10}|k|+\sum _{i=1}^{m}20{\log }_{10}|j\omega -z_i|-\sum _{i=1}^{n}20{\log }_{10}|j\omega -p_i|$

• Bode magnitude