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+//Example 4.2, Page Number 152
+//The Function fpround(dependency) is used to round a floating point number x to n decimal places
+clc;
+
+n1=3.6//For GaAs/Air Interface
+n2=1//For Air
+
+//Using Equation 4.14
+n3=n1-n2
+n4=n1+n2
+n6=(n3/n4)**2
+n5=(n2/n1)**2
+
+F=0.25*(n5)*(1-n6) //F is the Fractional Transmission for Isotropic Radiation 
+F=fpround(F,3)
+
+theta=asin(1/n1)  //Critical Angle in Degrees
+theta=theta *(180/%pi)
+theta=fpround(theta,0)
+
+mprintf("The Fractional Tranmission for Isotropic Radiation originating inside GaAs is:%.3f \n",F)
+mprintf(" The Critical Angle is:%d Degrees",theta)