Index C++ Code Documentation zap::Integrator File: APP/zap/Integrator.H public: Integrator( Loop4 const &residue, uint polylen ); constructor virtual ~Integrator(); destructor void integrate_line( Loop4 &X, Complex const &z0, Complex const &z1, uint count, bool initial_pole ); integrate along a line void integrate_circle( Loop4 &X, Complex const ¢er, Real radius, Real angle0, Real angle1, uint count, bool initial_pole ); integrate around a circle protected: private: virtual void alpha_fn( Loop4 &, Complex const & ) = 0; pure virtual function computes the residue term virtual void eta_fn( Loop4 &, Complex const & ) = 0; virtual function computes the perturbation term uint _polylen; length of polynomial void integration_step( Loop4 &X, Complex const &z, Complex const &dz, Loop4 &alpha, Loop4 &eta, bool initial_pole ); one step of integration void F( Loop4 &K, Loop4 const &X, Loop4 const &alpha, Loop4 const &eta, Complex const &z, Complex const &dz, uint polylen, bool initial_pole = false ); the F defining the differential equation for P void compute_P1( Loop4 &x, Loop4 const &a, Loop4 const &b ); compute initial integration step void exp_shift( Loop4 &X, Complex const &puncture, Complex const &zstart ); left multiply X by exp( log(z1-z0)*A ) Loop4 _residue;
	zap::Integrator GANG