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- DDDDLLLLAAAARRRRGGGGVVVV((((3333FFFF)))) DDDDLLLLAAAARRRRGGGGVVVV((((3333FFFF))))
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- NNNNAAAAMMMMEEEE
- DLARGV - generate a vector of real plane rotations, determined by
- elements of the real vectors x and y
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- SUBROUTINE DLARGV( N, X, INCX, Y, INCY, C, INCC )
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- INTEGER INCC, INCX, INCY, N
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- DOUBLE PRECISION C( * ), X( * ), Y( * )
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- PPPPUUUURRRRPPPPOOOOSSSSEEEE
- DLARGV generates a vector of real plane rotations, determined by elements
- of the real vectors x and y. For i = 1,2,...,n
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- ( c(i) s(i) ) ( x(i) ) = ( a(i) )
- ( -s(i) c(i) ) ( y(i) ) = ( 0 )
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- AAAARRRRGGGGUUUUMMMMEEEENNNNTTTTSSSS
- N (input) INTEGER
- The number of plane rotations to be generated.
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- 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.
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- INCX (input) INTEGER
- The increment between elements of X. INCX > 0.
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- Y (input/output) DOUBLE PRECISION array,
- dimension (1+(N-1)*INCY) On entry, the vector y. On exit, the
- sines of the plane rotations.
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- INCY (input) INTEGER
- The increment between elements of Y. INCY > 0.
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- C (output) DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
- The cosines of the plane rotations.
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- INCC (input) INTEGER
- The increment between elements of C. INCC > 0.
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- PPPPaaaaggggeeee 1111
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