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//Example 8.1, page 157
clc
r=5//in cm
n=1//in cm
n1=1.67200//in cm
for h = 1:3 //the calculations for h=0 is 0, the textbook ans is wrong
sin_ph=h/r
sin_ph_1=(sin_ph)*(n/n1)
ph=asind(sin_ph)
ph_1=asind(sin_ph_1)
theta=ph_1-ph
angle=sin(theta) // the textbook ans is wrong
printf("\n \n")
printf("\n For h=%d, sin_ph=%f ",h,sin_ph)
printf("\n \n")
printf("\n For h=%d, sin_ph1=%f ",h,sin_ph_1)
printf("\n \n")
printf("\n \n")
printf("\n For h=%d, ph=%f ",h,ph)
printf("\n \n")
printf("\n For h=%d, ph1=%f ",h,ph_1)
printf("\n \n")
printf("\n For h=%d, theta=%f ",h,theta)
printf("\n \n")
printf("\n For h=%d, angle=%f ",h,angle)
end
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