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+clc;funcprot(0)//EXAMPLE 7.7
+
+//Initializing the variables
+pi1 = 1.013;.......//Inlet pressure
+ pe1= 1.013;pi2= 1.3;
+pe2 = 1.013;.........//Exhaust pressure
+Tk1 = 300;...........//Temperature in Kelvin
+Tk2 = 333;...........//Temperature in Kelvin
+r = 14;........//compression ratio
+ga=1.4;..........//degree of freedom for gas
+R=287;...........//gas constant in J/kg.K
+//calculations
+//For pressure change
+eta_V2 = r - (pe2/pi2)^(1/ga);
+eta_V1 = r - (pe1/pi1)^(1/ga);
+x=eta_V2/eta_V1;
+//For inlet temperature change
+y = sqrt(Tk2/Tk1);
+//For volumetric efficiency, considering both pressure and temperature
+pive = ((x*y)-1);.........//percentage increase in volumetric efficiency
+disp(pive*100,"The percentage increase in volumetric efficiency is (%):")
+rho1 = (pi1*10^5)/(R*Tk1);
+rho2 = (pi2*10^5)/(R*Tk2);
+z = (rho2/rho1)*x*y;
+pip = (z-1);
+disp (pip*100,"The percentage increase in power (%):")