There are two prototypes of hbmv
            available, please see below. 
hbmv( const Scalar >, const MatrixA& a, const VectorX& x, const Scalar >, VectorY& y );
hbmv( const Scalar alpha, const MatrixA& a, const VectorX& x, const Scalar beta, VectorY& y );
            hbmv (short for hermitian,
            banded, matrix-vector operation) provides a C++ interface to BLAS routines
            SSBMV, DSBMV, CHBMV, and ZHBMV. hbmv
            performs the matrix-vector operation
          
y := alpha*A*x + beta*y,
where alpha and beta are scalars, x and y are n element vectors and A is an n by n hermitian band matrix, with k super-diagonals.
            The selection of the BLAS 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. Table X below illustrates to
            which specific routine this dispatching will take place.
          
Table 1.42. Dispatching of hbmv.
| Value type of MatrixA | BLAS routine | CBLAS routine | CUBLAS routine | 
|---|---|---|---|
| 
                       | SSBMV | cblas_ssbmv | cublasSsbmv | 
| 
                       | DSBMV | cblas_dsbmv | Unavailable | 
| 
                       | CHBMV | cblas_chbmv | cublasChbmv | 
| 
                       | ZHBMV | cblas_zhbmv | Unavailable | 
            The original routines SSBMV, DSBMV, CHBMV, and ZHBMV have eleven arguments,
            whereas hbmv requires
            five arguments.
          
            Defined in header boost/numeric/bindings/blas/level2/hbmv.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/blas/level2/hbmv.hpp> using namespace boost::numeric::bindings; blas::hbmv( x, y, z );
this will output
[5] 0 1 2 3 4 5