# copy - Man Page

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

## 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

NAG Ltd.

Further Details:

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

Definition at line 80 of file ccopy.f.

### 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

NAG Ltd.

Further Details:

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

Definition at line 81 of file dcopy.f.

### 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

NAG Ltd.

Further Details:

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

Definition at line 81 of file scopy.f.

### 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

NAG Ltd.

Further Details:

```     jack dongarra, linpack, 4/11/78.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 80 of file zcopy.f.

## Author

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## Info

Tue Nov 28 2023 12:08:43 Version 3.12.0 LAPACK