NAME

       slabad.f -

SYNOPSIS

   Functions/Subroutines
       subroutine slabad (SMALL, LARGE)
           SLABAD

Function/Subroutine Documentation

   subroutine slabad (realSMALL, realLARGE)
       SLABAD

       Purpose:

            SLABAD 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 SLAMCH.  This subroutine is needed because
            SLAMCH does not compensate for poor arithmetic in the upper half of
            the exponent range, as is found on a Cray.

       Parameters:
           SMALL

                     SMALL is REAL
                     On entry, the underflow threshold as computed by SLAMCH.
                     On exit, if LOG10(LARGE) is sufficiently large, the square
                     root of SMALL, otherwise unchanged.

           LARGE

                     LARGE is REAL
                     On entry, the overflow threshold as computed by SLAMCH.
                     On exit, if LOG10(LARGE) is sufficiently large, the square
                     root of LARGE, otherwise unchanged.

       Author:
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Date:
           November 2011

       Definition at line 75 of file slabad.f.

Author

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