Add maximum number of function evaluation ?

[jonathanBieler]

Sometimes evaluating the error function is quite expensive, so it's good if one can provide a maximum number of function evaluation as an option to minimise. This would also allow to benchmark the method for a fixed function call budget.

@dpsanders I can try to do a PR if you give me some pointers.

[dpsanders]

This would be great.

You can try adding a keyword argument to minimise here
Then keep track of the number of evaluations and exit the loop when the maximum number has been reached.