LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
Functions
real
LAPACK » Positive Definite tridiagonal Matrix » Linear Solve
Collaboration diagram for real:

Functions

subroutine sptsv (N, NRHS, D, E, B, LDB, INFO)
  SPTSV computes the solution to system of linear equations A * X = B for PT matrices More...
 
subroutine sptsvx (FACT, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, RCOND, FERR, BERR, WORK, INFO)
  SPTSVX computes the solution to system of linear equations A * X = B for PT matrices More...
 

Detailed Description

This is the group of real solve driver functions for PT matrices

sptcon
subroutine sptcon(N, D, E, ANORM, RCOND, WORK, INFO)
SPTCON
Definition: sptcon.f:120
spttrs
subroutine spttrs(N, NRHS, D, E, B, LDB, INFO)
SPTTRS
Definition: spttrs.f:111
slanst
real function slanst(NORM, N, D, E)
SLANST returns the value of the 1-norm, or the Frobenius norm, or the infinity norm,...
Definition: slanst.f:102
slacpy
subroutine slacpy(UPLO, M, N, A, LDA, B, LDB)
SLACPY copies all or part of one two-dimensional array to another.
Definition: slacpy.f:105
scopy
subroutine scopy(N, SX, INCX, SY, INCY)
SCOPY
Definition: scopy.f:84
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62
lsame
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:55
slamch
real function slamch(CMACH)
SLAMCH
Definition: slamch.f:70
spttrf
subroutine spttrf(N, D, E, INFO)
SPTTRF
Definition: spttrf.f:93
sptrfs
subroutine sptrfs(N, NRHS, D, E, DF, EF, B, LDB, X, LDX, FERR, BERR, WORK, INFO)
SPTRFS
Definition: sptrfs.f:165