You should use
F := operator "F"
to let the system know that 'F' is a function that can be applied to variables.
On Thu, Jul 12, 2018 at 8:07 AM, 'Nasser M. Abbasi' via FriCAS -
computer algebra system <[email protected]> wrote:
> sorry for basic question, but after some search I could find what the
> correct syntax is.
> Some integrals I need to run in Fricas use a generic function as in f(x) in
> the integrand. For example
>
> integrate(F(x)/(sqrt(x)*sqrt(-x + 1)),x)
>
> Fricas does not like the above
> -------------------
> (1) -> integrate(F(x)/(sqrt(x)*sqrt(-x + 1)),x)
> There are no exposed library operations named F but there is one
> unexposed operation with that name. Use HyperDoc Browse or issue
> )display op F
> to learn more about the available operation.
>
> Cannot find a definition or applicable library operation named F
> with argument type(s)
> Variable(x)
>
> Perhaps you should use "@" to indicate the required return type,
> or "$" to specify which version of the function you need.
> -----------------------
>
> What do I need to do to make it work?
> using FriCAS 1.3.4
>
> Thanks,
> --Nasser
>
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