Prototype

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

sprfs( const MatrixAP& ap, const MatrixAFP& afp, const VectorIPIV& ipiv,
        const MatrixB& b, MatrixX& x, VectorFERR& ferr, VectorBERR& berr );

Description

sprfs (short for $FRIENDLY_NAME) provides a C++ interface to LAPACK routines SSPRFS, DSPRFS, CSPRFS, and ZSPRFS. sprfs improves the computed solution to a system of linear equations when the coefficient matrix is symmetric indefinite and packed, 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 MatrixAP. The type of values is obtained through the value_type meta-function typename value_type<MatrixAP>::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/sprfs.hpp.

Parameters or Requirements on Types

Complexity

Example

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

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

this will output

[5] 0 1 2 3 4 5

Notes

See Also