Module ZBDSQR.C in CLAPACK

General Information

Computes the singular value decomposition (SVD) of a real bidiagonal matrix, using the bidiagonal QR algorithm. (Computational routine.). [C version of LAPACK routine, converted from Fortran by f2c.].

Usage

int zbdsqr_(char *uplo, integer *n, integer *ncvt, integer * nru, integer *ncc, doublereal *d, doublereal *e, doublecomplex *vt, integer *ldvt, doublecomplex *u, integer *ldu, doublecomplex *c, integer *ldc, doublereal *rwork, integer * info)

Classification

D6	Singular value decomposition (SVD)

Type

subroutine in CLAPACK package (COMPLEX16 sublibrary)

Language

C

Availability

Public domain, Portable

Precision

Double Precision

Alternates

CBDSQR.C

Single Precision

Download from NETLIB; Public access repository

Location

The University of Tennessee at Knoxville and Bell Laboratories

Contact

Jack Dongarra, ORNL (dongarra@cs.utk.edu) and Eric Grosse, Bell Labs (ehg@research.att.com)