LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
Functions
complex
LAPACK » Positive Definite tridiagonal Matrix » Computational routines
Collaboration diagram for complex:

Functions

subroutine cptcon (N, D, E, ANORM, RCOND, RWORK, INFO)
 CPTCON More...
 
subroutine cpteqr (COMPZ, N, D, E, Z, LDZ, WORK, INFO)
 CPTEQR More...
 
subroutine cptrfs (UPLO, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, FERR, BERR, WORK, RWORK, INFO)
 CPTRFS More...
 
subroutine cpttrf (N, D, E, INFO)
 CPTTRF More...
 
subroutine cpttrs (UPLO, N, NRHS, D, E, B, LDB, INFO)
 CPTTRS More...
 
subroutine cptts2 (IUPLO, N, NRHS, D, E, B, LDB)
 CPTTS2 solves a tridiagonal system of the form AX=B using the L D LH factorization computed by spttrf. More...
 

Detailed Description

This is the group of complex computational functions for PT matrices

csscal
subroutine csscal(N, SA, CX, INCX)
CSSCAL
Definition: csscal.f:80
cpttrs
subroutine cpttrs(UPLO, N, NRHS, D, E, B, LDB, INFO)
CPTTRS
Definition: cpttrs.f:123
isamax
integer function isamax(N, SX, INCX)
ISAMAX
Definition: isamax.f:73
cptts2
subroutine cptts2(IUPLO, N, NRHS, D, E, B, LDB)
CPTTS2 solves a tridiagonal system of the form AX=B using the L D LH factorization computed by spttrf...
Definition: cptts2.f:115
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62
lsame
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:55
claset
subroutine claset(UPLO, M, N, ALPHA, BETA, A, LDA)
CLASET initializes the off-diagonal elements and the diagonal elements of a matrix to given values.
Definition: claset.f:108
slamch
real function slamch(CMACH)
SLAMCH
Definition: slamch.f:70
cbdsqr
subroutine cbdsqr(UPLO, N, NCVT, NRU, NCC, D, E, VT, LDVT, U, LDU, C, LDC, RWORK, INFO)
CBDSQR
Definition: cbdsqr.f:224
ilaenv
integer function ilaenv(ISPEC, NAME, OPTS, N1, N2, N3, N4)
ILAENV
Definition: tstiee.f:83
caxpy
subroutine caxpy(N, CA, CX, INCX, CY, INCY)
CAXPY
Definition: caxpy.f:90
spttrf
subroutine spttrf(N, D, E, INFO)
SPTTRF
Definition: spttrf.f:93