using simpson 3/8 rule
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F(x)= x*((1/1+exp(x-5))-(1/1+exp(3-x)))*(1/((E-x)^2+2))
where x limit from 0 to 5 nm
and E vary from 0 to 3
can anyone tell me matlab code for this to solve this integration using simpson 3/8 rule
回答（1 个）
Birdman
2018-1-18
By downloading the file from the following link( simpson.m):
and type
x=0:0.1:5;%you can change the increment
E=0:3/(numel(x)-1):3;%has to be same length with x
y= x*((1/1+exp(x-5))-(1/1+exp(3-x)))*(1/((E-x)^2+2));
simpson(x,y,[],'3/8')
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2018-1-18
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