Scroll to navigation

complex16_blas_level1(3) LAPACK complex16_blas_level1(3)

NAME

complex16_blas_level1

SYNOPSIS

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:

December 2016

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:

December 2016

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:

December 2016

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:

December 2016

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:

December 2016

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:

December 2016

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:

December 2016

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:

December 2016

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:

December 2016

Further Details: 



     jack dongarra, 3/11/78.


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

Author

Generated automatically by Doxygen for LAPACK from the source code.

Wed May 24 2017 Version 3.7.0