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porfs
Prototype

There is one prototype of porfs available, please see below.

porfs( const MatrixA& a, const MatrixAF& af, const MatrixB& b,
        MatrixX& x, VectorFERR& ferr, VectorBERR& berr );

Description

porfs (short for $FRIENDLY_NAME) provides a C++ interface to LAPACK routines SPORFS, DPORFS, CPORFS, and ZPORFS. porfs improves the computed solution to a system of linear equations when the coefficient matrix is Hermitian positive definite, and provides error bounds and backward error estimates for the solution.

The selection of the LAPACK routine is done during compile-time, and is determined by the type of values contained in type MatrixA. The type of values is obtained through the value_type meta-function typename value_type<MatrixA>::type. The dispatching table below illustrates to which specific routine the code path will be generated.

Table 1.271. Dispatching of porfs

Value type of MatrixA

LAPACK routine

float

SPORFS

double

DPORFS

complex<float>

CPORFS

complex<double>

ZPORFS


Definition

Defined in header boost/numeric/bindings/lapack/computational/porfs.hpp.

Parameters or Requirements on Types

Parameters

MatrixA

The definition of term 1

MatrixB

The definition of term 2

MatrixC

The definition of term 3.

Definitions may contain paragraphs.

Complexity
Example

#include <boost/numeric/bindings/lapack/computational/porfs.hpp>
using namespace boost::numeric::bindings;

lapack::porfs( x, y, z );

this will output

[5] 0 1 2 3 4 5

Notes
See Also

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