Struct IntkambeResidual 

pub struct IntkambeResidual {
    orders: Vec<i32>,
    arguments: [Vec<Complex>; 2],
    size: usize,
}

What intkambe_array saves for its pullback: the orders and the arguments. The pullback uses the adjacent-order recurrence and the endpoint integrand.

Fields

orders: Vec<i32>

arguments: [Vec<Complex>; 2]

size: usize

Implementations

impl IntkambeResidual

pub fn new(orders: Vec<i32>, arguments: [Vec<Complex>; 2]) -> Result<Self>

Keep the broadcast inputs needed by derivatives without evaluating values.

pub fn pushforward(&self, tangents: [&[Complex]; 2]) -> Result<Vec<Complex>>

Directional derivative in z and eta. Inactive arguments do not evaluate their derivative, so a direction in eta remains valid when only dz is singular.

pub fn pullback(&self, cotangent: &[Complex]) -> Result<[Vec<Complex>; 2]>

The gradients with respect to z and eta, given the gradient cotangent with respect to the values. At z = 0 the z gradient of orders n <= -3 is its limit, zero. Orders n >= -2 have no z gradient at z = 0 and give an error.

Trait Implementations

impl Debug for IntkambeResidual

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.