MATLAB Function Reference |

Condition number with respect to eigenvalues

**Syntax**

**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

Large condition numbers imply that `A`

is near a matrix with multiple eigenvalues.

**See Also**

cond | condest |