#pragma once

// Structure d'un point reel

struct dpoint 
{
  double x;
  double y;
};


double distance(dpoint pt1, dpoint pt2); 
void GetCoeffDroite(dpoint pt1, dpoint pt2, double *p1, double *d1, double *b1); 
bool InterCercleDroite(dpoint p0, double r, dpoint d1, dpoint d2, dpoint *sr1, dpoint *sr2);
dpoint leplusproche(dpoint vPoint, dpoint sol1, dpoint sol2);
void moindres_carres_parabole(int N, dpoint *points, double *a, double *b, double *c);
void RegressionLineaire(int n, dpoint *points, double *a, double *b);
double distanceOrthPtDroite(dpoint vpt, dpoint pt1, dpoint pt2, dpoint *pres);
bool PtInPolygon(double vx, double vy, dpoint *tpoint, int nbpoint); 
bool PtInEllipse(double x, double y, double a, double b);