M1:=1000*V1/V4 =1015 AND 1000*V1/V4 =975; M3:=1000*V3/V4 =1015 AND 1000*V3/V4 =985; M4:=M1 AND M3 AND CROSS(V0,V1); M5:=M1 AND M3 AND CROSS(V0,V3); M4 OR M5;