Is it possible for N to be negative?

From Murray Wiki
Revision as of 23:58, 6 November 2006 by Mjdunlop (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search

Is it possible that N < 0? and |N| > P?

Yes, counter-clockwise encirclements give N < 0 since N is the number of clock-wise encirclements if you have two counter-clockwise encirclements of the -1 point then N = -2.

If N is not equal to -P then the closed loop system will be unstable.

--Mary Dunlop 15:58, 6 November 2006 (PST)