what is the meaning of (left half plane of roots)?

2 views (last 30 days)
the roots
b=
-0.3642 + 0.7125i
-0.3642 - 0.7125i
0.3642 + 0.7125i
0.3642 - 0.7125i
does it means only the real roots only?
or
the first two rows?

Accepted Answer

Voss
Voss on 14 May 2022
Edited: Voss on 14 May 2022
The left half-plane refers to the part of the complex plane where the real part is less than 0 (or <= 0 if you want to include the imaginary axis).
b=[
-0.3642 + 0.7125*i
-0.3642 - 0.7125*i
0.3642 + 0.7125*i
0.3642 - 0.7125*i]
b =
-0.3642 + 0.7125i -0.3642 - 0.7125i 0.3642 + 0.7125i 0.3642 - 0.7125i
b(real(b) < 0)
ans =
-0.3642 + 0.7125i -0.3642 - 0.7125i
In this case, the first two elements of b (which is the first two rows) are in the left half-plane, yes.

More Answers (0)

Tags

Products


Release

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!