LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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Collaboration diagram for lagtf: LU factor of (T - λI):

Functions

subroutine dlagtf (n, a, lambda, b, c, tol, d, in, info)
 DLAGTF computes an LU factorization of a matrix T-λI, where T is a general tridiagonal matrix, and λ a scalar, using partial pivoting with row interchanges.
 
subroutine slagtf (n, a, lambda, b, c, tol, d, in, info)
 SLAGTF computes an LU factorization of a matrix T-λI, where T is a general tridiagonal matrix, and λ a scalar, using partial pivoting with row interchanges.
 

Detailed Description