LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
dlagtf.f File Reference

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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. More...