public class Gerade
{
double m;
double c;
public Gerade(double _m, double _c)
m = _m;
c = _c;
}
public Gerade( Punkt p1, Punkt p2)
m = (p2.y -p1.y) / (p2.x - p1.x);
c = p1.y - m* p1.x;