LAPACK  3.6.0
LAPACK: Linear Algebra PACKage
Functions
complex
Reference BLAS » Level1
Collaboration diagram for complex:

Functions

subroutine caxpy (N, CA, CX, INCX, CY, INCY)
 CAXPY More...
 
subroutine ccopy (N, CX, INCX, CY, INCY)
 CCOPY More...
 
complex function cdotc (N, CX, INCX, CY, INCY)
 CDOTC More...
 
complex function cdotu (N, CX, INCX, CY, INCY)
 CDOTU More...
 
subroutine crotg (CA, CB, C, S)
 CROTG More...
 
subroutine cscal (N, CA, CX, INCX)
 CSCAL More...
 
subroutine csrot (N, CX, INCX, CY, INCY, C, S)
 CSROT More...
 
subroutine csscal (N, SA, CX, INCX)
 CSSCAL More...
 
subroutine cswap (N, CX, INCX, CY, INCY)
 CSWAP More...
 

Detailed Description

This is the group of complex LEVEL 1 BLAS routines.

Function Documentation

subroutine caxpy ( integer  N,
complex  CA,
complex, dimension(*)  CX,
integer  INCX,
complex, dimension(*)  CY,
integer  INCY 
)

CAXPY

Purpose: 
    CAXPY 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, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)
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.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2011
Further Details: 
     jack dongarra, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)
complex function cdotc ( integer  N,
complex, dimension(*)  CX,
integer  INCX,
complex, dimension(*)  CY,
integer  INCY 
)

CDOTC

Purpose: 
 CDOTC forms the dot product of two complex vectors
      CDOTC = X^H * Y
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2015
Further Details: 
     jack dongarra, linpack,  3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)
complex function cdotu ( integer  N,
complex, dimension(*)  CX,
integer  INCX,
complex, dimension(*)  CY,
integer  INCY 
)

CDOTU

Purpose: 
 CDOTU forms the dot product of two complex vectors
      CDOTU = X^T * Y
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2015
Further Details: 
     jack dongarra, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)
subroutine crotg ( complex  CA,
complex  CB,
real  C,
complex  S 
)

CROTG

Purpose: 
 CROTG determines a complex Givens rotation.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2011
subroutine cscal ( integer  N,
complex  CA,
complex, dimension(*)  CX,
integer  INCX 
)

CSCAL

Purpose: 
    CSCAL 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, linpack,  3/11/78.
     modified 3/93 to return if incx .le. 0.
     modified 12/3/93, array(1) declarations changed to array(*)
subroutine csrot ( integer  N,
complex, dimension( * )  CX,
integer  INCX,
complex, dimension( * )  CY,
integer  INCY,
real  C,
real  S 
)

CSROT

Purpose: 
 CSROT 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 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 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 REAL
           On entry, C specifies the cosine, cos.
[in]S
          S is REAL
           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 csscal ( integer  N,
real  SA,
complex, dimension(*)  CX,
integer  INCX 
)

CSSCAL

Purpose: 
    CSSCAL scales a complex vector by a real constant.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2011
Further Details: 
     jack dongarra, linpack, 3/11/78.
     modified 3/93 to return if incx .le. 0.
     modified 12/3/93, array(1) declarations changed to array(*)
subroutine cswap ( integer  N,
complex, dimension(*)  CX,
integer  INCX,
complex, dimension(*)  CY,
integer  INCY 
)

CSWAP

Purpose: 
   CSWAP interchanges two vectors.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2011
Further Details: 
     jack dongarra, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)