Function num_dual::try_third_partial_derivative

pub fn try_third_partial_derivative<G, T: DualNum<F>, F, E>(
    g: G,
    x: T,
    y: T,
    z: T
) -> Result<(T, T, T, T, T, T, T, T), E>where
    G: FnOnce(HyperHyperDual<T, F>, HyperHyperDual<T, F>, HyperHyperDual<T, F>) -> Result<HyperHyperDual<T, F>, E>,

Variant of third_partial_derivative for fallible functions.