For instance, consider a module with the following general structure:
end function f
y = f(x)
end module test
As such this is incorrect, as is doing something similar inside a
program (internal procedures can not reference each other). When I tested it in an module, I still get the same error. Presently I am putting
f outside the module, and it works. The reason I am not satisfied with that is I want
f to be available to programs that use test; now it is available only to the procedures that are defined inside this module file.