SingularValueList

SingularValueList[m]
gives a list of the nonzero singular values of a matrix m.

SingularValueList[{m,a}]
gives the generalized singular values of m with respect to a.

SingularValueList[m,k]
gives the k largest singular values of m.

SingularValueList[{m,a},k]
gives the k largest generalized singular values of m.

Details and OptionsDetails and Options

  • Singular values are sorted from largest to smallest.
  • Repeated singular values appear with their appropriate multiplicity.
  • By default, singular values are kept only when they are larger than 100 times , where p is Precision[m].
  • SingularValueList[m,Tolerance->t] keeps only singular values that are at least t times the largest singular value.
  • SingularValueList[m,Tolerance->0] returns all singular values.
  • The matrix m can be rectangular; the total number of singular values is always Min[Dimensions[m]].
  • Exact and symbolic matrices can be used, with zero tolerance assumed by default.
  • The singular values can be obtained from Sqrt[Eigenvalues[Conjugate[Transpose[m]].m]].
Introduced in 2003
(5.0)
| Updated in 2007
(6.0)