redhat man page for dlargv

Query: dlargv

OS: redhat

Section: l

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DLARGV(l)								 )								 DLARGV(l)

NAME
DLARGV - generate a vector of real plane rotations, determined by elements of the real vectors x and y
SYNOPSIS
SUBROUTINE DLARGV( N, X, INCX, Y, INCY, C, INCC ) INTEGER INCC, INCX, INCY, N DOUBLE PRECISION C( * ), X( * ), Y( * )
PURPOSE
DLARGV generates a vector of real plane rotations, determined by elements of the real vectors x and y. For i = 1,2,...,n ( c(i) s(i) ) ( x(i) ) = ( a(i) ) ( -s(i) c(i) ) ( y(i) ) = ( 0 )
ARGUMENTS
N (input) INTEGER The number of plane rotations to be generated. X (input/output) DOUBLE PRECISION array, dimension (1+(N-1)*INCX) On entry, the vector x. On exit, x(i) is overwritten by a(i), for i = 1,...,n. INCX (input) INTEGER The increment between elements of X. INCX > 0. Y (input/output) DOUBLE PRECISION array, dimension (1+(N-1)*INCY) On entry, the vector y. On exit, the sines of the plane rotations. INCY (input) INTEGER The increment between elements of Y. INCY > 0. C (output) DOUBLE PRECISION array, dimension (1+(N-1)*INCC) The cosines of the plane rotations. INCC (input) INTEGER The increment between elements of C. INCC > 0. LAPACK version 3.0 15 June 2000 DLARGV(l)