complex16_blas_level1(3) complex16

Functions


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 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(*)


 

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(*)


 

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 two complex vectors
      ZDOTC = X^H * Y


 

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

November 2015

Further Details: 

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


 

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 complex vectors
      ZDOTU = X^T * Y


 

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

November 2015

Further Details: 

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


 

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:

N 

          N is INTEGER
           On entry, N specifies the order of the vectors cx and cy.
           N must be at least zero.


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.


INCX 

          INCX is INTEGER
           On entry, INCX specifies the increment for the elements of
           CX. INCX must not be zero.


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.


INCY 

          INCY is INTEGER
           On entry, INCY specifies the increment for the elements of
           CY. INCY must not be zero.


C 

          C is DOUBLE PRECISION
           On entry, C specifies the cosine, cos.


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

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(*)


 

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

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(*)


 

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(*)


 

Author

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