> MB:=-89366.98;

> PB:=-105544.68;

> MA:=-86826.78;

> PA:=-103616.39;

> MM:=-86980.79;

> PM:=-105500.83;

> alfa:=67.8357/200*evalf(Pi);

> beta:=131.9974/200*evalf(Pi);

> TM:=((PB-PA)+(MM-MA)*cot(alfa)+(MM-MB)*cot(beta))/((MA-MB)+(PM-PA)*cot(alfa)+(PM-PB)*cot(beta));

> TA:=(TM-tan(alfa))/(1+TM*tan(alfa));

> TB:=(TM+tan(beta))/(1-TM*tan(beta));

> PP:=(MM-MA-PM*TM+PA*TA)/(TA-TM);

> MP:=MA-(PA-PP)*TA;

>