There are two prototypes of larfx
available, please see below.
larfx( const Side side, const VectorV& v, const Scalar >, MatrixC& c );
larfx( const Side side, const VectorV& v, const Scalar tau, MatrixC& c );
larfx
(short for $FRIENDLY_NAME)
provides a C++ interface to LAPACK routines SLARFX, DLARFX, CLARFX, and
ZLARFX. larfx
applies
a complex elementary reflector H to a complex m by n matrix C, from either
the left or the right. H is represented in the form
H = I - tau * v * v'
where tau is a complex scalar and v is a complex vector.
If tau = 0, then H is taken to be the unit matrix
This version uses inline code if H has order < 11.
The selection of the LAPACK routine is done during compile-time, and
is determined by the type of values contained in type VectorV
.
The type of values is obtained through the value_type
meta-function typename value_type<VectorV>::type
. The dispatching table below illustrates
to which specific routine the code path will be generated.
Table 1.344. Dispatching of larfx
Value type of VectorV |
LAPACK routine |
---|---|
|
SLARFX |
|
DLARFX |
|
CLARFX |
|
ZLARFX |
Defined in header boost/numeric/bindings/lapack/auxiliary/larfx.hpp
.
Parameters
The definition of term 1
The definition of term 2
The definition of term 3.
Definitions may contain paragraphs.
#include <boost/numeric/bindings/lapack/auxiliary/larfx.hpp> using namespace boost::numeric::bindings; lapack::larfx( x, y, z );
this will output
[5] 0 1 2 3 4 5