##### pftri

###### Prototype

There is one prototype of `pftri` available, please see below.

    pftri( MatrixA& a );

###### Description

`pftri` (short for $FRIENDLY_NAME) provides a C++ interface to LAPACK routines SPFTRI, DPFTRI, CPFTRI, and ZPFTRI. `pftri` computes the inverse of a complex Hermitian positive definite matrix A using the Cholesky factorization A = U**H*U or A = LL*H computed by ZPFTRF.

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 1.267. Dispatching of pftri

Value type of MatrixA | LAPACK routine
--- | ---
`float` | SPFTRI
`double` | DPFTRI
`complex<float>` | CPFTRI
`complex<double>` | ZPFTRI

###### Definition

Defined in header `boost/numeric/bindings/lapack/computational/pftri.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/pftri.hpp>
    using namespace boost::numeric::bindings;

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

this will output

    [5] 0 1 2 3 4 5

###### Notes

###### See Also

- Originating Fortran source files spftri.f, dpftri.f, cpftri.f, and zpftri.f at Netlib.