-// printf("Debug: %f %f %f %f %d %d \n", X1, Y1, X2, Y2, E1, E2);
+double zaehler, nenner, a_q, b_q, c_q, deltaX, deltaY;
+
+printf("Debug: %f %f %f %f %d %d \n", X1, Y1, X2, Y2, E1, E2);
+
+/* quadratwerte der seitenlaengen im dreieck */
+a_q=(double)MAXSIGNAL/E2;
+b_q=(double)MAXSIGNAL/E1;
+c_q=(X1-X2)*(X1-X2)+(Y1-Y2)*(Y1-Y2);