Prototype

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

gtrfs( const VectorDL& dl, const VectorD& d, const VectorDU& du,
        const VectorDLF& dlf, const VectorDF& df, const VectorDUF& duf,
        const VectorDU2& du2, const VectorIPIV& ipiv, const MatrixB& b,
        MatrixX& x, VectorFERR& ferr, VectorBERR& berr );

Description

gtrfs (short for $FRIENDLY_NAME) provides a C++ interface to LAPACK routines SGTRFS, DGTRFS, CGTRFS, and ZGTRFS. gtrfs improves the computed solution to a system of linear equations when the coefficient matrix is tridiagonal, 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 VectorDL. The type of values is obtained through the value_type meta-function typename value_type<VectorDL>::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/gtrfs.hpp.

Parameters or Requirements on Types

Complexity

Example

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

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

this will output

[5] 0 1 2 3 4 5

Notes

See Also