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+//chapter-5 page 174 example 5.2
+//==============================================================================
+clc;
+clear;
+
+//For a rectangular cavity resonator 
+a=2;//breadth in cm
+b=1;//height in cm
+l=3;//length of rectangular waveguide in cm
+disp('Lowest resonant frequency is obtained for the dominant mode TE10[f=c/w where w increases as f decreases. In dominant mode wc is maximum]');
+disp('So the dominant mode is TE101 so here m=1,n=0,p=1');
+c=3*10^10;//Velocity of light in cm/sec
+m=1;
+n=0;
+p=1;
+
+//CALCULATION
+f0=((c/2)*sqrt((m/a)^2+(n/b)^2+(p/l)^2))/10^9;//The resonant frequency of a rectangular cavity resonator in GHz
+
+//OUTPUT
+mprintf('\nThe resonant frequency of a rectangular cavity resonator is f0=%1.0f GHz',f0);
+
+//=========================END OF PROGRAM===============================
+