laed4: D&C step: secular equation nonlinear solver

Collaboration diagram for laed4: D&C step: secular equation nonlinear solver:

Functions
subroutine	dlaed4 (n, i, d, z, delta, rho, dlam, info)
	DLAED4 used by DSTEDC. Finds a single root of the secular equation.
subroutine	slaed4 (n, i, d, z, delta, rho, dlam, info)
	SLAED4 used by SSTEDC. Finds a single root of the secular equation.

Detailed Description