text: /* 
  * Suanfa.h
  *
  * Created: 2018/8/11 16:38:11
  * Author: Administrator
  */
  
  
  #ifndef __Suanfa_H__
  #define __Suanfa_H__
  
  
  class Suanfa
  {
  public:	
     Suanfa();
     void tozero(double P1,double p0);
     void realXY(double x1,double y1,double p);
     double p;
     double x,y;
  
     double _x1;
     double _y1;
     double _p1;
  
    double dx;
    double dy;
    double dp;
  
    double dx1;
    double dy1;
  }; //Suanfa
  
  #endif //__Suanfa_H__
  