There are two prototypes of her2k
            available, please see below. 
her2k( const Scalar >, const MatrixA& a, const MatrixB& b, const Scalar >, MatrixC& c );
her2k( const Scalar alpha, const MatrixA& a, const MatrixB& b, const Scalar >, MatrixC& c );
            her2k (short for hermitian
            rank-2k update) provides a C++ interface to BLAS routines SSYR2K, DSYR2K,
            CHER2K, and ZHER2K. her2k
            performs one of the hermitian rank 2k operations
          
C := alpha*A*conjg( B' ) + conjg( alpha )*B*conjg( A' ) + beta*C,
or
C := alpha*conjg( A' )*B + conjg( alpha )*conjg( B' )*A + beta*C,
where alpha and beta are scalars with beta real, C is an n by n hermitian matrix and A and B are n by k matrices in the first case and k by n matrices in the second case.
            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 1.86. Dispatching of her2k.
| Value type of MatrixA | BLAS routine | CBLAS routine | CUBLAS routine | 
|---|---|---|---|
| 
                       | SSYR2K | cblas_ssyr2k | cublasSsyr2k | 
| 
                       | DSYR2K | cblas_dsyr2k | cublasDsyr2k | 
| 
                       | CHER2K | cblas_cher2k | cublasCher2k | 
| 
                       | ZHER2K | cblas_zher2k | Unavailable | 
            The original routines SSYR2K, DSYR2K, CHER2K, and ZHER2K have twelve
            arguments, whereas her2k
            requires five arguments.
          
            Defined in header boost/numeric/bindings/blas/level3/her2k.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/level3/her2k.hpp> using namespace boost::numeric::bindings; blas::her2k( x, y, z );
this will output
[5] 0 1 2 3 4 5