sasum.f(3) LAPACK sasum.f(3)NAME
sasum.f -
SYNOPSIS
Functions/Subroutines
REAL function sasum (N, SX, INCX)
SASUM
Function/Subroutine Documentation
REAL function sasum (integerN, real, dimension(*)SX, integerINCX)
SASUM Purpose:
SASUM takes the sum of the absolute values.
uses unrolled loops for increment equal to one.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Further Details:
jack dongarra, linpack, 3/11/78.
modified 3/93 to return if incx .le. 0.
modified 12/3/93, array(1) declarations changed to array(*)
Definition at line 53 of file sasum.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 sasum.f(3)
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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
Function/Subroutine Documentation
subroutine slartv (integerN, real, dimension( * )X, integerINCX, real, dimension( * )Y, integerINCY, real, dimension( * )C, real, dimension( *
)S, integerINCC)
SLARTV
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:
November 2011
Definition at line 109 of file slartv.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.1 Sun May 26 2013 slartv.f(3)