bsearch< real_t > Struct Template Reference

#include <system_descartes1d.hpp>

List of all members.

Public Member Functions

template<class In > bsearch (const In &bzrep, unsigned sz)
~bsearch ()
void reach (real_t *lbzrep, real_t &a, real_t &b, const real_t &eps)

Public Attributes

real_t * m_data
real_t * m_mons
unsigned m_sz
unsigned m_mxsz

Detailed Description

template<class real_t>
struct mmx::solvers::bsearch< real_t >

Definition at line 25 of file system_descartes1d.hpp.

Constructor & Destructor Documentation

bsearch	(	const In &	bzrep,
		unsigned	sz
	)			`[inline]`

Definition at line 34 of file system_descartes1d.hpp.

References mmx::sparse::copy(), bsearch< real_t >::m_data, and bsearch< real_t >::m_mons.

00034                                               : m_sz(sz) 
00035     {
00036       m_data = new real_t[ 2*sz ];
00037       std::copy( bzrep, bzrep + sz, m_data );
00038       m_mons = m_data + sz;
00039       std::copy( m_data, m_data + sz, m_mons );
00040       bernstein::bzenv<real_t>::_default_->toMonoms( m_mons, sz );
00041     };

~bsearch ( ) [inline]

Definition at line 42 of file system_descartes1d.hpp.

References bsearch< real_t >::m_data.

00042 { delete[] m_data; };

Member Function Documentation

void reach	(	real_t *	lbzrep,
		real_t &	a,
		real_t &	b,
		const real_t &	eps
	)			`[inline]`

Definition at line 44 of file system_descartes1d.hpp.

References mmx::upoldse_::horner(), bsearch< real_t >::m_mons, and bsearch< real_t >::m_sz.

00045     {
00046       real_t m;
00047       if ( lbzrep[m_sz-1] > lbzrep[0] ) 
00048         do
00049           if ( upoldse_::horner( m_mons, m_sz, m=(a+b)/2.0 ) < 0  ) a = m; else b = m; 
00050         while( b-a > eps ) ;
00051       else
00052         do
00053           if ( upoldse_::horner( m_mons, m_sz, m=(a+b)/2.0 ) < 0  ) b = m; else a = m;
00054         while( b-a > eps ); 
00055     };