def min_interp(interp_object):
    """
    Find the global minimum of a function represented as an interpolation object.
    """
    try:
        return interp_object.x[interp_object(interp_object.x).argmin()]
    except Exception as e:
        s = "Cannot find minimum of tthe interpolation object" + str(interp_object.x) + \
        "Minimal x: " + str(interp_object.x.min()) + "Maximal x: " + str(interp_object.x.max())
        raise e