LAPACK  3.4.2
LAPACK: Linear Algebra PACKage
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Functions/Subroutines
complex16
Level1
Collaboration diagram for complex16:

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.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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.

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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.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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.

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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.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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.

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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.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011

Definition at line 99 of file zdrot.f.

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

ZDSCAL

Purpose: 
    ZDSCAL scales a vector by a constant.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011

Definition at line 40 of file zrotg.f.

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

ZSCAL

Purpose: 
    ZSCAL scales a vector by a constant.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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.