##### lanhp

###### Prototype

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

    lanhp( const char norm, const MatrixAP& ap );

###### Description

`lanhp` (short for $FRIENDLY_NAME) provides a C++ interface to LAPACK routines CLANHP and ZLANHP. `lanhp` returns the value of the one norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a complex hermitian matrix A, supplied in packed form.

Description `=``=``=`==

`lanhp` returns the value

`lanhp` = ( max(abs(A(i,j))), NORM = 'M' or 'm' ( ( norm1(A), NORM = '1', 'O' or 'o' ( ( normI(A), NORM = 'I' or 'i' ( ( normF(A), NORM = 'F', 'f', 'E' or 'e'

where norm1 denotes the one norm of a matrix (maximum column sum), normI denotes the infinity norm of a matrix (maximum row sum) and normF denotes the Frobenius norm of a matrix (square root of sum of squares). Note that max(abs(A(i,j))) is not a consistent matrix norm.

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.

Table 1.353. Dispatching of lanhp

Value type of MatrixAP | LAPACK routine
--- | ---
`complex<float>` | CLANHP
`complex<double>` | ZLANHP

###### Definition

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

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

this will output

    [5] 0 1 2 3 4 5

###### Notes

###### See Also

- Originating Fortran source files clanhp.f and zlanhp.f at Netlib.