Function ackley_abc_hessian

pub fn ackley_abc_hessian<T>(param: &[T], a: T, b: T, c: T) -> Vec<Vec<T>>
where
    T: Float + FromPrimitive + Sum,

Hessian of Ackley test function

The same as ackley_hessian; however, it allows to set the parameters a, b and c.