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+//Page Number: 105
+//Example 2.19
+clc;
+//Given
+c=3D+8; //m/s
+a=2.29; //cm
+b=1.02; //cm
+a1=a/100 ;//m
+b1=b/100; //m
+f=6D+9; //Hz
+e=1;
+mu=1/(c^2);
+
+//Cut off frequency
+lamc=2*a1;
+fc=c/lamc;
+w=2*%pi*fc;
+
+//Attenuation constant
+a=(w*sqrt(1-((f/fc)^2)))/c;;
+adb=-20*log10(exp(-a));
+disp('dB/m',adb,'Attenuation constant:');