esort
Sort continuous-time poles by real part
Syntax
s = esort(p)
[s,ndx] = esort(p)
Description
esort
sorts the continuous-time poles contained
in the vector p
by real part. Unstable eigenvalues
appear first and the remaining poles are ordered by decreasing real
parts.
When called with one left-hand argument, s = esort(p)
returns
the sorted eigenvalues in s
.
[s,ndx] = esort(p)
returns
the additional argument ndx
, a vector containing
the indices used in the sort.
Examples
Sort the following continuous eigenvalues.
p p = -0.2410+ 0.5573i -0.2410- 0.5573i 0.1503 -0.0972 -0.2590 esort(p) ans = 0.1503 -0.0972 -0.2410+ 0.5573i -0.2410- 0.5573i -0.2590
Limitations
The eigenvalues in the vector p
must appear
in complex conjugate pairs.
Version History
Introduced before R2006a