larrr: step in stemr, test to do expensive tridiag eig algorithm

Collaboration diagram for larrr: step in stemr, test to do expensive tridiag eig algorithm:

Functions
subroutine	dlarrr (n, d, e, info)
	DLARRR performs tests to decide whether the symmetric tridiagonal matrix T warrants expensive computations which guarantee high relative accuracy in the eigenvalues.
subroutine	slarrr (n, d, e, info)
	SLARRR performs tests to decide whether the symmetric tridiagonal matrix T warrants expensive computations which guarantee high relative accuracy in the eigenvalues.

Detailed Description