In Root Locus analysis, the angle of asymptotes for n poles and m zeros is given by:

A(k + 1) * 90° / (n - m)

B(2k) * 360° / (n + m)

C180° / (n * m)

D(2k + 1) * 180° / (n - m)

Explanation

The angles of asymptotes departing to infinity are theta_a = (2k + 1) * 180° / (n – m) for k = 0, 1, 2, …, (n – m – 1).

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