integral does not give results
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x=sym('x')
int(((x*exp(-x/3))+tan(x)),0,5)
I can't find where I made the mistake, Matlab does not give results
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/350753/image.png)
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Réponses (1)
Star Strider
le 24 Août 2020
It works for me (in R2020a):
x=sym('x')
Int = int(x*exp(-x/3)+tan(x),x,0,5)
producing:
Int =
NaN
To understand the results, plot the function:
figure
fplot(x*exp(-x/3)+tan(x), [0,5])
grid
.
7 commentaires
Bruno Luong
le 24 Août 2020
This might be useful
syms x
Int = int(x*exp(-x/3)+tan(x),x,0,5,'PrincipalValue',true)
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