1DLARGV(1)           LAPACK auxiliary routine (version 3.1)           DLARGV(1)
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NAME

6       DLARGV  -  a  vector of real plane rotations, determined by elements of
7       the real vectors x and y
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SYNOPSIS

10       SUBROUTINE DLARGV( N, X, INCX, Y, INCY, C, INCC )
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12           INTEGER        INCC, INCX, INCY, N
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14           DOUBLE         PRECISION C( * ), X( * ), Y( * )
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PURPOSE

17       DLARGV generates a vector of real plane rotations, determined  by  ele‐
18       ments of the real vectors x and y. For i = 1,2,...,n
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20          (  c(i)  s(i) ) ( x(i) ) = ( a(i) )
21          ( -s(i)  c(i) ) ( y(i) ) = (   0  )
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ARGUMENTS

25       N       (input) INTEGER
26               The number of plane rotations to be generated.
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28       X       (input/output) DOUBLE PRECISION array,
29               dimension (1+(N-1)*INCX) On entry, the vector x.  On exit, x(i)
30               is overwritten by a(i), for i = 1,...,n.
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32       INCX    (input) INTEGER
33               The increment between elements of X. INCX > 0.
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35       Y       (input/output) DOUBLE PRECISION array,
36               dimension (1+(N-1)*INCY) On entry, the vector y.  On exit,  the
37               sines of the plane rotations.
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39       INCY    (input) INTEGER
40               The increment between elements of Y. INCY > 0.
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42       C       (output) DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
43               The cosines of the plane rotations.
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45       INCC    (input) INTEGER
46               The increment between elements of C. INCC > 0.
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50 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       DLARGV(1)