There is one prototype of stein
available, please see below.
stein( const int_t n, const VectorD& d, const VectorE& e, const int_t m, const VectorW& w, const VectorIBLOCK& iblock, const VectorISPLIT& isplit, MatrixZ& z, VectorIFAIL& ifail );
stein
(short for $FRIENDLY_NAME)
provides a C++ interface to LAPACK routines SSTEIN, DSTEIN, CSTEIN, and
ZSTEIN. stein
computes
the eigenvectors of a real symmetric tridiagonal matrix T corresponding
to specified eigenvalues, using inverse iteration.
The maximum number of iterations allowed for each eigenvector is specified by an internal parameter MAXITS (currently set to 5).
Although the eigenvectors are real, they are stored in a complex array, which may be passed to ZUNMTR or ZUPMTR for back transformation to the eigenvectors of a complex Hermitian matrix which was reduced to tridiagonal form.
The selection of the LAPACK routine is done during compile-time, and
is determined by the type of values contained in type VectorD
.
The type of values is obtained through the value_type
meta-function typename value_type<VectorD>::type
. The dispatching table below illustrates
to which specific routine the code path will be generated.
Table 1.321. Dispatching of stein
Value type of VectorD |
LAPACK routine |
---|---|
|
SSTEIN |
|
DSTEIN |
|
CSTEIN |
|
ZSTEIN |
Defined in header boost/numeric/bindings/lapack/computational/stein.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/computational/stein.hpp> using namespace boost::numeric::bindings; lapack::stein( x, y, z );
this will output
[5] 0 1 2 3 4 5