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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  • [fricas-devel] how... 'Nasser M. Abbasi' via FriCAS - computer algebra system

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