.TH DLARTV 1 "November 2006" " LAPACK auxiliary routine (version 3.1) " " LAPACK auxiliary routine (version 3.1) " .SH NAME DLARTV - a vector of real plane rotations to elements of the real vectors x and y .SH SYNOPSIS .TP 19 SUBROUTINE DLARTV( N, X, INCX, Y, INCY, C, S, INCC ) .TP 19 .ti +4 INTEGER INCC, INCX, INCY, N .TP 19 .ti +4 DOUBLE PRECISION C( * ), S( * ), X( * ), Y( * ) .SH 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) ) .br ( y(i) ) ( -s(i) c(i) ) ( y(i) ) .br .SH ARGUMENTS .TP 8 N (input) INTEGER The number of plane rotations to be applied. .TP 8 X (input/output) DOUBLE PRECISION array, dimension (1+(N-1)*INCX) The vector x. .TP 8 INCX (input) INTEGER The increment between elements of X. INCX > 0. .TP 8 Y (input/output) DOUBLE PRECISION array, dimension (1+(N-1)*INCY) The vector y. .TP 8 INCY (input) INTEGER The increment between elements of Y. INCY > 0. .TP 8 C (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC) The cosines of the plane rotations. .TP 8 S (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC) The sines of the plane rotations. .TP 8 INCC (input) INTEGER The increment between elements of C and S. INCC > 0.