-zaehler=MAXSIGNAL*(1./E1-1./E2)-(X1-X2)*(X1-X2)-(Y1-Y2)*(Y1-Y2);
-nenner=2*sqrt((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);
+printf("Debug: Zaehler %f\n", zaehler);
+nenner=-2*sqrt((X1-X2)*(X1-X2)+(Y1-Y2)*(Y1-Y2));
+printf("Debug: Nenner %f\n", nenner);