Prototype

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

pttrf( VectorD& d, VectorE& e );

Description

pttrf (short for $FRIENDLY_NAME) provides a C++ interface to LAPACK routines SPTTRF, DPTTRF, CPTTRF, and ZPTTRF. pttrf computes the L*D*L' factorization of a complex Hermitian positive definite tridiagonal matrix A. The factorization may also be regarded as having the form A = U'*D*U.

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.

Definition

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

Parameters or Requirements on Types

Complexity

Example

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

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

this will output

[5] 0 1 2 3 4 5

Notes

See Also