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/*
* PNode.h
*
* Created on: 8 Apr 2013
* Author: s0965328
*/
#ifndef PNODE_H_
#define PNODE_H_
#include "Node.h"
namespace AutoDiff {
using namespace std;
class PNode: public Node {
public:
PNode(double value);
virtual ~PNode();
void collect_vnodes(boost::unordered_set<Node*>& nodes,unsigned int& total);
void eval_function();
void grad_reverse_0();
void grad_reverse_1_init_adj();
void grad_reverse_1();
void update_adj(double& v);
void hess_forward(unsigned int len,double** ret_vec);
unsigned int hess_reverse_0();
void hess_reverse_0_get_values(unsigned int i,double& x,double& x_bar,double& w,double& w_bar);
void hess_reverse_1(unsigned int i);
void hess_reverse_1_init_x_bar(unsigned int);
void update_x_bar(unsigned int, double);
void update_w_bar(unsigned int, double);
void hess_reverse_1_get_xw(unsigned int, double&,double&);
void hess_reverse_get_x(unsigned int,double& x);
void nonlinearEdges(EdgeSet&);
void inorder_visit(int level,ostream& oss);
string toString(int level);
TYPE getType();
double pval;
};
} // end namespace foo
#endif /* PNODE_H_ */
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