Scroll to navigation

complex(3) LAPACK complex(3)

NAME

complex -

Functions


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

Detailed Description

This is the group of complex LEVEL 1 BLAS routines.

Function Documentation

subroutine caxpy (integerN, complexCA, complex, dimension(*)CX, integerINCX, complex, dimension(*)CY, integerINCY)

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:
December 2016
Further Details: 
     jack dongarra, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)

subroutine ccopy (integerN, complex, dimension(*)CX, integerINCX, complex, dimension(*)CY, integerINCY)

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:
December 2016
Further Details: 
     jack dongarra, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)

complex function cdotc (integerN, complex, dimension(*)CX, integerINCX, complex, dimension(*)CY, integerINCY)

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:
December 2016
Further Details: 
     jack dongarra, linpack,  3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)

complex function cdotu (integerN, complex, dimension(*)CX, integerINCX, complex, dimension(*)CY, integerINCY)

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:
December 2016
Further Details: 
     jack dongarra, linpack, 3/11/78.
     modified 12/3/93, array(1) declarations changed to array(*)

subroutine crotg (complexCA, complexCB, realC, complexS)

CROTG
Purpose: 
 CROTG determines a complex Givens rotation.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
December 2016

subroutine cscal (integerN, complexCA, complex, dimension(*)CX, integerINCX)

CSCAL
Purpose: 
    CSCAL 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, 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 (integerN, complex, dimension( * )CX, integerINCX, complex, dimension( * )CY, integerINCY, realC, realS)

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:
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 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 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 REAL
           On entry, C specifies the cosine, cos.
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:
December 2016

subroutine csscal (integerN, realSA, complex, dimension(*)CX, integerINCX)

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:
December 2016
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 (integerN, complex, dimension(*)CX, integerINCX, complex, dimension(*)CY, integerINCY)

CSWAP
Purpose: 
   CSWAP interchanges two vectors.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
December 2016
Further Details: 
     jack dongarra, linpack, 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 Mar 8 2017 Version 3.7.0