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//Eg-11.3
//pg-473
clc
clear
Cf = 10^(-6);
Ci = 10^(-5);
h = (Cf-Ci)/2;
deff('out = func(in)','out = -100/in')
t1 = func(Ci);
t2 = func(Ci+h);
t3 = func(Cf);
//Now the integration using the simpson's 1/3 rule I = (h/3)[f(a)+4f(a+h)+f(b)]
//h = (b-a)/2
I = (h/3)*(t1 + 4*t2 + t3);
I = abs(I); //since integral we have to consider the absolute value
printf('The calculated value of the integral is %f\n',I)
printf(' The exact value of the integral is 230.3')
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