dsnrm2.f File Reference

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Functions/Subroutines
double precision function	dsnrm2 (n, x, incx)

Function/Subroutine Documentation

dsnrm2()

double precision function dsnrm2	(	integer	n,
		real, dimension( * )	x,
		integer	incx )

Definition at line 1 of file dsnrm2.f.

*
*  -- ScaLAPACK tools routine (version 1.7) --
*     University of Tennessee, Knoxville, Oak Ridge National Laboratory,
*     and University of California, Berkeley.
*     May 1, 1997
*
*     .. Scalar Arguments ..
      INTEGER            INCX, N
*     ..
*     .. Array Arguments ..
      REAL               X( * )
*     ..
*
*  Purpose
*  =======
*
*  DSNRM2 is a simple FORTRAN wrapper around the BLAS function SNRM2
*  returning the result as a double allowing it to be callable by C
*  programs.
*
*  =====================================================================
*
*     .. External Functions ..
      REAL               SNRM2
      EXTERNAL           snrm2
*     ..
*     .. Intrinsic Functions ..
      INTRINSIC          dble
*     ..
*     .. Executable Statements ..
*
      dsnrm2 = dble( snrm2( n, x, incx ) )
*
      RETURN
*
*     End of DSNRM2
*