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slartv.f(3) LAPACK slartv.f(3)

NAME

slartv.f -

SYNOPSIS

Functions/Subroutines


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

Function/Subroutine Documentation

subroutine slartv (integerN, real, dimension( * )X, integerINCX, real, dimension( * )Y, integerINCY, real, dimension( * )C, real, dimension( * )S, integerINCC)

SLARTV applies a vector of plane rotations with real cosines and real sines to the elements of a pair of vectors.
Purpose: 
 SLARTV 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 REAL array,
                         dimension (1+(N-1)*INCX)
          The vector x.
INCX 
          INCX is INTEGER
          The increment between elements of X. INCX > 0.
Y 
          Y is REAL array,
                         dimension (1+(N-1)*INCY)
          The vector y.
INCY 
          INCY is INTEGER
          The increment between elements of Y. INCY > 0.
C 
          C is REAL array, dimension (1+(N-1)*INCC)
          The cosines of the plane rotations.
S 
          S is REAL 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 slartv.f.

Author

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