DLABAD(3F)							    DLABAD(3F)

NAME    [Toc]    [Back]

     DLABAD - take as input the	values computed	by SLAMCH for underflow	and
     overflow, and returns the square root of each of these values if the log
     of	LARGE is sufficiently large

SYNOPSIS    [Toc]    [Back]

     SUBROUTINE	DLABAD(	SMALL, LARGE )

	 DOUBLE		PRECISION LARGE, SMALL

PURPOSE    [Toc]    [Back]

     DLABAD takes as input the values computed by SLAMCH for underflow and
     overflow, and returns the square root of each of these values if the log
     of	LARGE is sufficiently large.  This subroutine is intended to identify
     machines with a large exponent range, such	as the Crays, and redefine the
     underflow and overflow limits to be the square roots of the values
     computed by DLAMCH.  This subroutine is needed because DLAMCH does	not
     compensate	for poor arithmetic in the upper half of the exponent range,
     as	is found on a Cray.

ARGUMENTS    [Toc]    [Back]

     SMALL   (input/output) DOUBLE PRECISION
	     On	entry, the underflow threshold as computed by DLAMCH.  On
	     exit, if LOG10(LARGE) is sufficiently large, the square root of
	     SMALL, otherwise unchanged.

     LARGE   (input/output) DOUBLE PRECISION
	     On	entry, the overflow threshold as computed by DLAMCH.  On exit,
	     if	LOG10(LARGE) is	sufficiently large, the	square root of LARGE,
	     otherwise unchanged.
DLABAD(3F)							    DLABAD(3F)

NAME    [Toc]    [Back]

     DLABAD - take as input the	values computed	by SLAMCH for underflow	and
     overflow, and returns the square root of each of these values if the log
     of	LARGE is sufficiently large

SYNOPSIS    [Toc]    [Back]

     SUBROUTINE	DLABAD(	SMALL, LARGE )

	 DOUBLE		PRECISION LARGE, SMALL

PURPOSE    [Toc]    [Back]

     DLABAD takes as input the values computed by SLAMCH for underflow and
     overflow, and returns the square root of each of these values if the log
     of	LARGE is sufficiently large.  This subroutine is intended to identify
     machines with a large exponent range, such	as the Crays, and redefine the
     underflow and overflow limits to be the square roots of the values
     computed by DLAMCH.  This subroutine is needed because DLAMCH does	not
     compensate	for poor arithmetic in the upper half of the exponent range,
     as	is found on a Cray.

ARGUMENTS    [Toc]    [Back]

     SMALL   (input/output) DOUBLE PRECISION
	     On	entry, the underflow threshold as computed by DLAMCH.  On
	     exit, if LOG10(LARGE) is sufficiently large, the square root of
	     SMALL, otherwise unchanged.

     LARGE   (input/output) DOUBLE PRECISION
	     On	entry, the overflow threshold as computed by DLAMCH.  On exit,
	     if	LOG10(LARGE) is	sufficiently large, the	square root of LARGE,
	     otherwise unchanged.


									PPPPaaaaggggeeee 1111