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+clc
+clear
+//INPUT DATA
+BP=200;//Brake power in kW
+Vs=10*10^-3;//swept volue
+n=2;//for four cylinders
+nc=1;//number of cylinders
+N=2100;//speed in rpm
+L=0.136;//stroke in m
+d=0.125;//bore in m
+
+//CALCULATIONS
+Sp=2*L*N/60;//Mean piston speed in m/s
+bmep=(BP*n*60)/(Vs*N);//Brake mean effective pressure in kPa
+P=BP/(3.14*d^2*6/4);//Specific power in kN/m^2
+
+//OUTPUT
+printf('Mean piston speed is %3.2f m/s \n Specific power is %3.1f kN/m^2',Sp,P)