There is one prototype of sytrd
            available, please see below. 
sytrd( MatrixA& a, VectorD& d, VectorE& e, VectorTAU& tau );
            sytrd (short for $FRIENDLY_NAME)
            provides a C++ interface to LAPACK routines SSYTRD and DSYTRD. sytrd reduces a real symmetric matrix
            A to real symmetric tridiagonal form T by an orthogonal similarity transformation:
            Q**T * A * Q = T.
          
            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.
          
            Defined in header boost/numeric/bindings/lapack/computational/sytrd.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/computational/sytrd.hpp> using namespace boost::numeric::bindings; lapack::sytrd( x, y, z );
this will output
[5] 0 1 2 3 4 5