Visualizing closed loop poles

Add or remove zeros and poles by left- and right-clicking.

K = 10⁰

The blue point s is mapped to the w-plane by the function KG(s). Similarly, a contour is mapped to a plot.

Interaction mode:

s = 0
Interactive
Orbit a zero
Orbit a pole
Nyquist contour

Shows the zeros of 1+KG(s) = 0 for every positive K.

Made by Bram Geelen @ ESAT - STADIUS.
Source code at gitlab.esat.kuleuven.be/Bram.Geelen/cauchy
Uses Math.js, fraction.js complex.js and polynomial.js .