third order derivative for external functions

[ghazika1]

Hi,

I want to use an external function in my model block, and I want to use third order perturbation. I declare the function using:
external_function(name = funcname, nargs = 3, first_deriv_provided, second_deriv_provided);

It works fine with order=2, but when I use order=3, I get the error:
ERROR: third order derivatives of external functions are not implemented

Is there a way that I can implement the third order derivative of the external function?

Thank you,
Ghazika1

[jpfeifer]

Unfortunately, not yet: https://github.com/DynareTeam/dynare/issues/300

[ghazika1]

Thank you jpfeifer.