sdsdot.f(3) LAPACK sdsdot.f(3)NAME
sdsdot.f -
SYNOPSIS
Functions/Subroutines
REAL function sdsdot (N, SB, SX, INCX, SY, INCY)
SDSDOT
Function/Subroutine Documentation
REAL function sdsdot (integerN, realSB, real, dimension(*)SX, integerINCX, real, dimension(*)SY, integerINCY)
SDSDOT Purpose:
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Definition at line 141 of file sdsdot.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 sdsdot.f(3)
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srotm.f(3) LAPACK srotm.f(3)NAME
srotm.f -
SYNOPSIS
Functions/Subroutines
subroutine srotm (N, SX, INCX, SY, INCY, SPARAM)
SROTM
Function/Subroutine Documentation
subroutine srotm (integerN, real, dimension(*)SX, integerINCX, real, dimension(*)SY, integerINCY, real, dimension(5)SPARAM)
SROTM Purpose:
APPLY THE MODIFIED GIVENS TRANSFORMATION, H, TO THE 2 BY N MATRIX
(SX**T) , WHERE **T INDICATES TRANSPOSE. THE ELEMENTS OF SX ARE IN
(SX**T)
SX(LX+I*INCX), I = 0 TO N-1, WHERE LX = 1 IF INCX .GE. 0, ELSE
LX = (-INCX)*N, AND SIMILARLY FOR SY USING USING LY AND INCY.
WITH SPARAM(1)=SFLAG, H HAS ONE OF THE FOLLOWING FORMS..
SFLAG=-1.E0 SFLAG=0.E0 SFLAG=1.E0 SFLAG=-2.E0
(SH11 SH12) (1.E0 SH12) (SH11 1.E0) (1.E0 0.E0)
H=( ) ( ) ( ) ( )
(SH21 SH22), (SH21 1.E0), (-1.E0 SH22), (0.E0 1.E0).
SEE SROTMG FOR A DESCRIPTION OF DATA STORAGE IN SPARAM.
Parameters:
N
N is INTEGER
number of elements in input vector(s)
SX
SX is REAL array, dimension N
double precision vector with N elements
INCX
INCX is INTEGER
storage spacing between elements of SX
SY
SY is REAL array, dimension N
double precision vector with N elements
INCY
INCY is INTEGER
storage spacing between elements of SY
SPARAM
SPARAM is REAL array, dimension 5
SPARAM(1)=SFLAG
SPARAM(2)=SH11
SPARAM(3)=SH21
SPARAM(4)=SH12
SPARAM(5)=SH22
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Definition at line 100 of file srotm.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 srotm.f(3)
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