Prototype

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

gbrfs( const MatrixAB& ab, const MatrixAFB& afb, const VectorIPIV& ipiv,
        const MatrixB& b, MatrixX& x, VectorFERR& ferr, VectorBERR& berr );

Description

gbrfs (short for $FRIENDLY_NAME) provides a C++ interface to LAPACK routines SGBRFS, DGBRFS, CGBRFS, and ZGBRFS. gbrfs improves the computed solution to a system of linear equations when the coefficient matrix is banded, 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 MatrixAB. The type of values is obtained through the value_type meta-function typename value_type<MatrixAB>::type. The dispatching table below illustrates to which specific routine the code path will be generated.

Definition

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

Parameters or Requirements on Types

Complexity

Example

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

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

this will output

[5] 0 1 2 3 4 5

Notes

See Also