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Below is the matlab code for Trapezoidal Rule :
x=[0 .2 .4 .6 .8 1]
n=6;
h=(x(6)-x(1))/5
for i=1:n
y(i)=1/(1+x(i)*x(i));
end
sum=h/2*(y(1)+y(6)+2*(y(2)+y(3)+y(4)+y(5)))
Save the file with a .m extension.
Then on the command window run the file by typing filename.m
The output the above program will be something like this :
x =
0 0.2000 0.4000 0.6000 0.8000 1.0000
h =
0.2000
sum =
0.7837
Trapezoidal Rule in MATLAB
