How to add integral in a integral function

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I need to add an complex integral inside of a integral function like this:
integral(@(x)sin(integral(@(a)sin(a),0,x)),0,1)
However, it turns out to be an error with message: “Limits of integration must be double or single scalars.”
P.S. My function is much complex than 'sin(x)', here just is an example.
How to solve this?

Risposta accettata

Torsten
Torsten il 30 Nov 2022
Modificato: Torsten il 30 Nov 2022
format long
integral(@(x)sin(integral(@(a)sin(a),0,x)),0,1,'ArrayValued',true)
ans =
0.156096097878724
integral(@(x)sin(1-cos(x)),0,1)
ans =
0.156096097878724

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R2021a

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