DLARTV(1) LAPACK auxiliary routine (version 3.2) DLARTV(1)[top]NAMEDLARTV - applies a vector of real plane rotations to elements of the real vectors x and ySYNOPSISSUBROUTINE DLARTV( N, X, INCX, Y, INCY, C, S, INCC ) INTEGER INCC, INCX, INCY, N DOUBLE PRECISION C( * ), S( * ), X( * ), Y( * )PURPOSEDLARTV 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) )ARGUMENTSN (input) INTEGER The number of plane rotations to be applied. X (input/output) DOUBLE PRECISION array, dimension (1+(N-1)*INCX) The vector x. INCX (input) INTEGER The increment between elements of X. INCX > 0. Y (input/output) DOUBLE PRECISION array, dimension (1+(N-1)*INCY) The vector y. INCY (input) INTEGER The increment between elements of Y. INCY > 0. C (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC) The cosines of the plane rotations. S (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC) The sines of the plane rotations. INCC (input) INTEGER The increment between elements of C and S. INCC > 0. LAPACK auxiliary routine (versioNovember 2008 DLARTV(1)

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