The name of the function object. There is
no automatic default naming, a new name
must be input for creation of function.

String of the function definition. Function
string can contain standard math functions,
Adams variables and functions, and derived
functions of motion object results. It is
the responsibility of the user to know the
correct strings and usage of standard math
functions and Adams variables/functions.
To get the derived function string of a
motion object for a result type, use
UF_MOTION_get_object_derived_function.
It is highly recommended that the syntax
of a function definition be validated
before creating the function object. See
UF_MOTION_validate_function_syntax.

Number of lines in the function definition.