userfuncDLL
userfuncDLL |
Purpose
Synopsis
function userfuncDLL(libfile:string, fctname:string):userfunc
Arguments
|
libfile
|
Name of the dynamically linked library containing the implementation of the user function
|
|
fctname
|
Name of the function inside the dynamic library
|
Return value
A
userfunc object that can be used in the
F functions to be embedded in formulas.
Further information
User functions allow extremely complex, recursive or non-algebraic expressions to be included in nonlinear formulae. As such they may make use of simulators or other black box evaluators. The actual parameters to a user function depend upon the way it is bound to the model by the
F function. Please see the chapter 'User functions' of the
Xpress NonLinear Reference Manual for more details. Dynamically linked libraries are supported on all platforms, and are usually the most computationally efficient way to implement user functions in
mmxnlp.
Related topics
Module