# dcopy.f - Man Page

## Synopsis

### Functions/Subroutines

subroutine **dcopy** (**N**, DX, INCX, DY, INCY)**DCOPY**

## Function/Subroutine Documentation

### subroutine dcopy (integer N, double precision, dimension(*) DX, integer INCX, double precision, dimension(*) DY, integer INCY)

**DCOPY**

**Purpose:**

DCOPY copies a vector, x, to a vector, y. uses unrolled loops for increments equal to 1.

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

*DX*DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

*INCX*INCX is INTEGER storage spacing between elements of DX

*DY*DY is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCY ) )

*INCY*INCY is INTEGER storage spacing between elements of DY

**Author:**Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

**Date:**November 2017

**Further Details:**

jack dongarra, linpack, 3/11/78. modified 12/3/93, array(1) declarations changed to array(*)

Definition at line 84 of file dcopy.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page dcopy(3) is an alias of dcopy.f(3).

Tue Nov 14 2017 Version 3.8.0 LAPACK