crot.f - Man Page
SRC/crot.f
Synopsis
Functions/Subroutines
subroutine crot (n, cx, incx, cy, incy, c, s)
CROT applies a plane rotation with real cosine and complex sine to a pair of complex vectors.
Function/Subroutine Documentation
subroutine crot (integer n, complex, dimension( * ) cx, integer incx, complex, dimension( * ) cy, integer incy, real c, complex s)
CROT applies a plane rotation with real cosine and complex sine to a pair of complex vectors.
Purpose:
CROT applies a plane rotation, where the cos (C) is real and the sin (S) is complex, and the vectors CX and CY are complex.
- Parameters
N
N is INTEGER The number of elements in the vectors CX and CY.
CX
CX is COMPLEX array, dimension (N) On input, the vector X. On output, CX is overwritten with C*X + S*Y.
INCX
INCX is INTEGER The increment between successive values of CX. INCX <> 0.
CY
CY is COMPLEX array, dimension (N) On input, the vector Y. On output, CY is overwritten with -CONJG(S)*X + C*Y.
INCY
INCY is INTEGER The increment between successive values of CY. INCX <> 0.
C
C is REAL
S
S is COMPLEX C and S define a rotation [ C S ] [ -conjg(S) C ] where C*C + S*CONJG(S) = 1.0.
- Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 102 of file crot.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Referenced By
The man page crot(3) is an alias of crot.f(3).
Tue Nov 28 2023 12:08:41 Version 3.12.0 LAPACK