//Example 4.8 clc; clear; close; format('v',9); //Given data : S1=0.9;//sp. gravity S2=13.6;//sp. gravity h1=12.5/100;//m P_AB=h1*(S2-S1);//meter of water disp("Difference in pressure head at the points A & B is "+string(P_AB)+" meter of water"); w=1000;//kg/m^3 P_diff=P_AB*w*9.81;//Pa or Nm^2 disp(P_diff,"In terms A pressure entirely, the difference of pressure in N/m^2 : ");