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+clc;clear;
+//Example 17.3
+
+//given data
+T0=200+273;//converted in K
+P0=1400;
+//stagnant temp. & pressure is same as inlet due to small inlet velocity
+P=1200;
+m=3;
+
+//from Table A-2a
+cp=0.846;//in kJ/kg-K
+R=0.1889;//in kJ/kg-K
+k=1.289;
+
+//calculations
+T=T0*(P/P0)^((k-1)/k);
+V=sqrt(2*cp*(T0-T)*1000);//factor of 1000 to convert kJ to J
+p=P/(R*T);
+A=m/(p*V);
+c=sqrt(k*R*T*1000);//factor of 1000 to convert kJ to J
+Ma=V/c;
+disp(V,'velocity in m/s');
+disp(p,'density in kg/m^3');
+disp((A*10000),'flow area in cm^2');
+disp(Ma,'Mach number');