Solve integral in nested function

hello there, i am trying to build something like this:

if true
  function x = first
       x = 5*y
function y = nested
       I = @(x) x^2
       y = integral(I,0,1)
end
end
end
but there occurs an error stating: 'Error: Function definitions are not permitted in this context.'
Does anyone know an alternative or sees the misstake i made?
thanks!

Answer 1

[Meet]

Hi Payjay,

According to the MATLAB R2024a documentation, you cannot define a nested function inside any of the control statements, such as if, elseif, else, switch, case, for, while, or try/catch.

What you can do is define the nested function outside the if control statement and then call the function inside this control statement. For example:

function x = first
    % Your code logic
    function y = nested
        % Your code logic
    end
end

if true
    result = first
end

For more information on the usage of nested function, you can refer to the following documentation: Nested Functions