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copy(3) LAPACK copy(3)

NAME

copy - copy: y = x

SYNOPSIS

Functions


subroutine ccopy (n, cx, incx, cy, incy)
CCOPY subroutine dcopy (n, dx, incx, dy, incy)
DCOPY subroutine scopy (n, sx, incx, sy, incy)
SCOPY subroutine zcopy (n, zx, incx, zy, incy)
ZCOPY

Detailed Description

Function Documentation

subroutine ccopy (integer n, complex, dimension(*) cx, integer incx, complex, dimension(*) cy, integer incy)

CCOPY

Purpose:



    CCOPY copies a vector x to a vector y.

Parameters

N 



          N is INTEGER


         number of elements in input vector(s)

CX



          CX is COMPLEX array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

INCX



          INCX is INTEGER


         storage spacing between elements of CX

CY



          CY is COMPLEX array, dimension ( 1 + ( N - 1 )*abs( INCY ) )

INCY



          INCY is INTEGER


         storage spacing between elements of CY

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Further Details:



     jack dongarra, linpack, 3/11/78.


     modified 12/3/93, array(1) declarations changed to array(*)

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.

Further Details:



     jack dongarra, linpack, 3/11/78.


     modified 12/3/93, array(1) declarations changed to array(*)

subroutine scopy (integer n, real, dimension(*) sx, integer incx, real, dimension(*) sy, integer incy)

SCOPY

Purpose:



    SCOPY 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)

SX



          SX is REAL array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

INCX



          INCX is INTEGER


         storage spacing between elements of SX

SY



          SY is REAL array, dimension ( 1 + ( N - 1 )*abs( INCY ) )

INCY



          INCY is INTEGER


         storage spacing between elements of SY

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Further Details:



     jack dongarra, linpack, 3/11/78.


     modified 12/3/93, array(1) declarations changed to array(*)

subroutine zcopy (integer n, complex*16, dimension(*) zx, integer incx, complex*16, dimension(*) zy, integer incy)

ZCOPY

Purpose:



    ZCOPY copies a vector, x, to a vector, y.

Parameters

N 



          N is INTEGER


         number of elements in input vector(s)

ZX



          ZX is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

INCX



          INCX is INTEGER


         storage spacing between elements of ZX

ZY



          ZY is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCY ) )

INCY



          INCY is INTEGER


         storage spacing between elements of ZY

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Further Details:



     jack dongarra, linpack, 4/11/78.


     modified 12/3/93, array(1) declarations changed to array(*)

Author

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