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 (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:
-
N
N is INTEGER On entry, N specifies the order of the vectors cx and cy. N must be at least zero.
CXCX 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.
INCXINCX is INTEGER On entry, INCX specifies the increment for the elements of CX. INCX must not be zero.
CYCY 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.
INCYINCY is INTEGER On entry, INCY specifies the increment for the elements of CY. INCY must not be zero.
CC is REAL On entry, C specifies the cosine, cos.
SS 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(*)
Author
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