
NAMEzrot.f SYNOPSISFunctions/Subroutinessubroutine zrot (N, CX, INCX, CY, INCY, C, S) Function/Subroutine Documentationsubroutine zrot (integerN, complex*16, dimension( * )CX, integerINCX, complex*16, dimension( * )CY, integerINCY, double precisionC, complex*16S)ZROT applies a plane rotation with real cosine and complex sine to a pair of complex vectors. Purpose:ZROT applies a plane rotation, where the cos (C) is real and the sin (S) is complex, and the vectors CX and CY are complex. N
Author:
N is INTEGER The number of elements in the vectors CX and CY.CX CX is COMPLEX*16 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 CY. INCX <> 0.CY CY is COMPLEX*16 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 DOUBLE PRECISIONS S is COMPLEX*16 C and S define a rotation [ C S ] [ conjg(S) C ] where C*C + S*CONJG(S) = 1.0. Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 104 of file zrot.f.
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