lagts: LU solve of (T - λI) x = y

Collaboration diagram for lagts: LU solve of (T - λI) x = y:

Functions
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.
subroutine	slagts (job, n, a, b, c, d, in, y, tol, info)
	SLAGTS 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.

Detailed Description