Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages

CentOS 7.0 - man page for dsdot.f (centos section 3)

dsdot.f(3)				      LAPACK				       dsdot.f(3)

NAME
       dsdot.f -

SYNOPSIS
   Functions/Subroutines
       DOUBLE PRECISION function dsdot (N, SX, INCX, SY, INCY)
	   DSDOT

Function/Subroutine Documentation
   DOUBLE PRECISION function dsdot (integerN, real, dimension(*)SX, integerINCX, real,
       dimension(*)SY, integerINCY)
       DSDOT Purpose:

	    Compute the inner product of two vectors with extended
	    precision accumulation and result.

	    Returns D.P. dot product accumulated in D.P., for S.P. SX and SY
	    DSDOT = sum for I = 0 to N-1 of  SX(LX+I*INCX) * SY(LY+I*INCY),
	    where LX = 1 if INCX .GE. 0, else LX = 1+(1-N)*INCX, and LY is
	    defined in a similar way using INCY.

       Parameters:
	   N

		     N is INTEGER
		    number of elements in input vector(s)

	   SX

		     SX is REAL array, dimension(N)
		    single precision vector with N elements

	   INCX

		     INCX is INTEGER
		     storage spacing between elements of SX

	   SY

		     SY is REAL array, dimension(N)
		    single precision vector with N elements

	   INCY

		     INCY is INTEGER
		    storage spacing between elements of SY

       Returns:
	   DSDOT

		     DSDOT is DOUBLE PRECISION
		    DSDOT  double precision dot product (zero if N.LE.0)

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Further Details:

       References:

	     C. L. Lawson, R. J. Hanson, D. R. Kincaid and F. T.
	     Krogh, Basic linear algebra subprograms for Fortran
	     usage, Algorithm No. 539, Transactions on Mathematical
	     Software 5, 3 (September 1979), pp. 308-323.

	     REVISION HISTORY  (YYMMDD)

	     791001  DATE WRITTEN
	     890831  Modified array declarations.  (WRB)
	     890831  REVISION DATE from Version 3.2
	     891214  Prologue converted to Version 4.0 format.	(BAB)
	     920310  Corrected definition of LX in DESCRIPTION.  (WRB)
	     920501  Reformatted the REFERENCES section.  (WRB)
	     070118  Reformat to LAPACK style (JL)

       Definition at line 120 of file dsdot.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2				 Tue Sep 25 2012			       dsdot.f(3)


All times are GMT -4. The time now is 12:53 PM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
UNIX.COM Login
Username:
Password:  
Show Password