LAPACK  3.4.2 LAPACK: Linear Algebra PACKage
complex16
Collaboration diagram for complex16:


This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.

## Functions/Subroutines

subroutine zaxpy (N, ZA, ZX, INCX, ZY, INCY)
ZAXPY
subroutine zcopy (N, ZX, INCX, ZY, INCY)
ZCOPY
COMPLEX *16 function zdotc (N, ZX, INCX, ZY, INCY)
ZDOTC
COMPLEX *16 function zdotu (N, ZX, INCX, ZY, INCY)
ZDOTU
subroutine zdrot (N, CX, INCX, CY, INCY, C, S)
ZDROT
subroutine zdscal (N, DA, ZX, INCX)
ZDSCAL
subroutine zrotg (CA, CB, C, S)
ZROTG
subroutine zscal (N, ZA, ZX, INCX)
ZSCAL
subroutine zswap (N, ZX, INCX, ZY, INCY)
ZSWAP

## Detailed Description

This is the group of complex16 LEVEL 1 BLAS routines.

## Function/Subroutine Documentation

 subroutine zaxpy ( integer N, complex*16 ZA, complex*16, dimension(*) ZX, integer INCX, complex*16, dimension(*) ZY, integer INCY )

ZAXPY

Purpose:
`    ZAXPY constant times a vector plus a vector.`
Date:
November 2011
Further Details:
```     jack dongarra, 3/11/78.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 52 of file zaxpy.f.

Here is the call graph for this function:

 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.`
Date:
November 2011
Further Details:
```     jack dongarra, linpack, 4/11/78.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 51 of file zcopy.f.

 COMPLEX*16 function zdotc ( integer N, complex*16, dimension(*) ZX, integer INCX, complex*16, dimension(*) ZY, integer INCY )

ZDOTC

Purpose:
` ZDOTC forms the dot product of a vector.`
Date:
November 2011
Further Details:
```     jack dongarra, 3/11/78.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 51 of file zdotc.f.

Here is the caller graph for this function:

 COMPLEX*16 function zdotu ( integer N, complex*16, dimension(*) ZX, integer INCX, complex*16, dimension(*) ZY, integer INCY )

ZDOTU

Purpose:
`    ZDOTU forms the dot product of two vectors.`
Date:
November 2011
Further Details:
```     jack dongarra, 3/11/78.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 51 of file zdotu.f.

Here is the caller graph for this function:

 subroutine zdrot ( integer N, complex*16, dimension( * ) CX, integer INCX, complex*16, dimension( * ) CY, integer INCY, double precision C, double precision S )

ZDROT

Purpose:
``` Applies a plane rotation, where the cos and sin (c and s) are real
and the vectors cx and cy are complex.
jack dongarra, linpack, 3/11/78.```
Parameters:
 [in] N ``` N is INTEGER On entry, N specifies the order of the vectors cx and cy. N must be at least zero.``` [in,out] CX ``` CX is COMPLEX*16 array, dimension at least ( 1 + ( N - 1 )*abs( INCX ) ). Before entry, the incremented array CX must contain the n element vector cx. On exit, CX is overwritten by the updated vector cx.``` [in] INCX ``` INCX is INTEGER On entry, INCX specifies the increment for the elements of CX. INCX must not be zero.``` [in,out] CY ``` CY is COMPLEX*16 array, dimension at least ( 1 + ( N - 1 )*abs( INCY ) ). Before entry, the incremented array CY must contain the n element vector cy. On exit, CY is overwritten by the updated vector cy.``` [in] INCY ``` INCY is INTEGER On entry, INCY specifies the increment for the elements of CY. INCY must not be zero.``` [in] C ``` C is DOUBLE PRECISION On entry, C specifies the cosine, cos.``` [in] S ``` S is DOUBLE PRECISION On entry, S specifies the sine, sin.```
Date:
November 2011

Definition at line 99 of file zdrot.f.

Here is the caller graph for this function:

 subroutine zdscal ( integer N, double precision DA, complex*16, dimension(*) ZX, integer INCX )

ZDSCAL

Purpose:
`    ZDSCAL scales a vector by a constant.`
Date:
November 2011
Further Details:
```     jack dongarra, 3/11/78.
modified 3/93 to return if incx .le. 0.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 53 of file zdscal.f.

 subroutine zrotg ( complex*16 CA, complex*16 CB, double precision C, complex*16 S )

ZROTG

Purpose:
`    ZROTG determines a double complex Givens rotation.`
Date:
November 2011

Definition at line 40 of file zrotg.f.

Here is the caller graph for this function:

 subroutine zscal ( integer N, complex*16 ZA, complex*16, dimension(*) ZX, integer INCX )

ZSCAL

Purpose:
`    ZSCAL scales a vector by a constant.`
Date:
November 2011
Further Details:
```     jack dongarra, 3/11/78.
modified 3/93 to return if incx .le. 0.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 53 of file zscal.f.

 subroutine zswap ( integer N, complex*16, dimension(*) ZX, integer INCX, complex*16, dimension(*) ZY, integer INCY )

ZSWAP

Purpose:
`    ZSWAP interchanges two vectors.`
Date:
November 2011
Further Details:
```     jack dongarra, 3/11/78.
modified 12/3/93, array(1) declarations changed to array(*)```

Definition at line 51 of file zswap.f.