simpeg.optimization.BFGS.callback#
- property BFGS.callback#
- A used defined callback function. - Returns:
- Noneor- Callable[[- np.ndarray],- Any]
- The optional user supplied callback function accepting the current iteration value as an input. 
 
 
A used defined callback function.
None or Callable[[np.ndarray], Any]The optional user supplied callback function accepting the current iteration value as an input.