printf("Debug: %f %f %f %f %d %d \n", X1, Y1, X2, Y2, E1, E2);
zaehler=MAXSIGNAL*(1./E2-1./E1)-(X1-X2)*(X1-X2)-(Y1-Y2)*(Y1-Y2);
printf("Debug: %f %f %f %f %d %d \n", X1, Y1, X2, Y2, E1, E2);
zaehler=MAXSIGNAL*(1./E2-1./E1)-(X1-X2)*(X1-X2)-(Y1-Y2)*(Y1-Y2);