condeig
Condition number with respect to eigenvalues
Syntax
c = condeig(A)
[V,D,s] = condeig(A)
Description
c = condeig(A)
returns
a vector of condition numbers for the eigenvalues of A
.
These condition numbers are the reciprocals of the cosines of the
angles between the left and right eigenvectors.
[V,D,s] = condeig(A)
is
equivalent to
[V,D] = eig(A); s = condeig(A);
Large condition numbers imply that A
is near
a matrix with multiple eigenvalues.
Extended Capabilities
Version History
Introduced before R2006a