DLARTV (3) Linux Manual Page

dlartv.f –

Synopsis

Functions/Subroutines

subroutine dlartv (N, X, INCX, Y, INCY, C, S, INCC)
DLARTV applies a vector of plane rotations with real cosines and real sines to the elements of a pair of vectors.

Function/Subroutine Documentation

subroutine dlartv (integerN, double precision, dimension( * )X, integerINCX, double precision, dimension( * )Y, integerINCY, double precision, dimension( * )C, double precision, dimension( * )S, integerINCC)

DLARTV applies a vector of plane rotations with real cosines and real sines to the elements of a pair of vectors.

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) )

 ( y(i) ) ( -s(i) c(i) ) ( y(i) )

 

Parameters:

N

 N is INTEGER

 The number of plane rotations to be applied.

X

 X is DOUBLE PRECISION array,

 dimension (1+(N-1)*INCX)

 The vector x.

INCX

 INCX is INTEGER

 The increment between elements of X. INCX > 0.

Y

 Y is DOUBLE PRECISION array,

 dimension (1+(N-1)*INCY)

 The vector y.

INCY

 INCY is INTEGER

 The increment between elements of Y. INCY > 0.

C

 C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)

 The cosines of the plane rotations.

S

 S is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)

 The sines of the plane rotations.

INCC

 INCC is INTEGER

 The increment between elements of C and S. INCC > 0.

 

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Definition at line 109 of file dlartv.f.

Author

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