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BLAS/SRC/csrot.f(3) LAPACK BLAS/SRC/csrot.f(3)

BLAS/SRC/csrot.f


subroutine csrot (n, cx, incx, cy, incy, c, s)
CSROT

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.

Definition at line 97 of file csrot.f.

Generated automatically by Doxygen for LAPACK from the source code.

Sun Jan 12 2025 15:13:27 Version 3.12.1

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