subroutine dlartv (N, X, INCX, Y, INCY, C, S, INCC)
DLARTV applies a vector of plane rotations with real cosines and real sines to the elements of a pair of vectors.
DLARTV applies a vector of plane rotations with real cosines and real sines to the elements of a pair of vectors.
Purpose:
DLARTV applies a vector of real plane rotations to elements of the real vectors x and y. For i = 1,2,...,n ( x(i) ) := ( c(i) s(i) ) ( x(i) ) ( y(i) ) ( -s(i) c(i) ) ( y(i) )
Parameters:
N is INTEGER The number of plane rotations to be applied.
X
X is DOUBLE PRECISION array, dimension (1+(N-1)*INCX) The vector x.
INCX
INCX is INTEGER The increment between elements of X. INCX > 0.
Y
Y is DOUBLE PRECISION array, dimension (1+(N-1)*INCY) The vector y.
INCY
INCY is INTEGER The increment between elements of Y. INCY > 0.
C
C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC) The cosines of the plane rotations.
S
S is DOUBLE PRECISION array, dimension (1+(N-1)*INCC) The sines of the plane rotations.
INCC
INCC is INTEGER The increment between elements of C and S. INCC > 0.
Author:
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
Definition at line 110 of file dlartv.f.
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