There is one prototype of hegvx
            available, please see below. 
hegvx( const int_t itype, const char jobz, const char range, MatrixA& a, MatrixB& b, const Scalar >, const Scalar >, const int_t il, const int_t iu, const Scalar >, int_t& m, VectorW& w, MatrixZ& z, VectorIFAIL& ifail );
            hegvx (short for $FRIENDLY_NAME)
            provides a C++ interface to LAPACK routines SSYGVX, DSYGVX, CHEGVX, and
            ZHEGVX. hegvx computes
            selected eigenvalues, and optionally, eigenvectors of a complex generalized
            Hermitian-definite eigenproblem, of the form A*x(lambda)*B*x,
            A*Bx(lambda)*x, or B*A*x=(lambda)*x. Here A and B are assumed
            to be Hermitian and B is also positive definite. Eigenvalues and eigenvectors
            can be selected by specifying either a range of values or a range of
            indices for the desired eigenvalues.
          
            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 1.111. Dispatching of hegvx
| Value type of MatrixA | LAPACK routine | 
|---|---|
| 
                       | SSYGVX | 
| 
                       | DSYGVX | 
| 
                       | CHEGVX | 
| 
                       | ZHEGVX | 
            Defined in header boost/numeric/bindings/lapack/driver/hegvx.hpp.
          
Parameters
The definition of term 1
The definition of term 2
The definition of term 3.
Definitions may contain paragraphs.
#include <boost/numeric/bindings/lapack/driver/hegvx.hpp> using namespace boost::numeric::bindings; lapack::hegvx( x, y, z );
this will output
[5] 0 1 2 3 4 5