Transfer function


Drag the poles
r0,r1r_0, r_1
and zeros
q0,q1q_0, q_1
on the z-plane and adjust the gain b0b_0 to modify the transfer function of a 2nd-order IIR filter H(z)=b0⋅z−q0z−r0⋅z−q1z−r1.H(z) = b_0 \cdot \dfrac{z - q_0}{z - r_0} \cdot \dfrac{z - q_1}{z - r_1}.
b0b_0 0.100
preselected values
z-limit below the 3D graph avoids plotting high values around poles.
z-plane
Transfer Function
z-limit
Frequency Response Function
a = [1, 0, 0]
b = [1, 0, 0]