Function argmin_testfunctions::zero_hessian_const

pub fn zero_hessian_const<const N: usize, T>(_param: &[T; N]) -> [[T; N]; N]
where
    T: Float + FromPrimitive,

Hessian of zero test function (const version)

Always returns a matrix with size NxN, full of 0.0. This is only for performance tests.