Z-PLANE BIQUAD
Second-order IIR filter with conjugate pairs
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Z-Plane
3D Spectrum
Frequency Response (dB)
Zero: 0.00 + 0.00j
Pole: 0.00 + 0.00j
Status: Stable
Numerator (b)
[1, 0, 0]
Denominator (a)
[1, 0, 0]
Drag ○ zero and
× pole in upper half-plane
Conjugates mirror automatically • Poles inside unit circle for stability