LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
dlagts.f File Reference

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Functions/Subroutines

subroutine dlagts (JOB, N, A, B, C, D, IN, Y, TOL, INFO)
 DLAGTS solves the system of equations (T-λI)x = y or (T-λI)Tx = y,where T is a general tridiagonal matrix and λ a scalar, using the LU factorization computed by slagtf. More...
 
xerbla
subroutine xerbla(SRNAME, INFO)
XERBLA
Definition: xerbla.f:62
dlamch
double precision function dlamch(CMACH)
DLAMCH
Definition: dlamch.f:70