Numerical solution for convolution integral

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Roi
Roi 2017-2-13
编辑： Torsten 2017-2-14
Hi, I need to solve numerically the attached double integral, where x1 and x2 are variables, a is constant. x1 comprises the boundary of the first integration.
Can someone suggest how to do this?
Best Regards,

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Torsten
Torsten 2017-2-14
编辑：Torsten 2017-2-14
a=...;
L=...;
fun=@(x,y)(0.5*x.^3+x.^2).*exp(-x/a).*(0.5*y.^3+y.^2);
upper_y=@(x)x;
q=integral2(fun,0,L,0,upper_y);
Best wishes
Torsten.

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