Struct Stencil 

pub struct Stencil<S: Scalar> {
    pub coeffs: Vec<S>,
    pub offset: i32,
}

Finite difference stencil coefficients.

Fields

coeffs: Vec<S>

Coefficients for each point in the stencil

offset: i32

Offset of the leftmost point from center

Implementations

impl<S: Scalar> Stencil<S>

pub fn d1_central(dx: S) -> Self

Create a first derivative central difference stencil.

pub fn d1_forward(dx: S) -> Self

Create a first derivative forward difference stencil.

pub fn d1_backward(dx: S) -> Self

Create a first derivative backward difference stencil.

pub fn d2_central(dx: S) -> Self

Create a second derivative central difference stencil.

pub fn d2_central4(dx: S) -> Self

Create a fourth-order accurate second derivative stencil.

pub fn apply(&self, u: &[S], i: usize) -> S

Apply stencil at point i to array u.

Trait Implementations

impl<S: Clone + Scalar> Clone for Stencil<S>

fn clone(&self) -> Stencil<S>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<S: Debug + Scalar> Debug for Stencil<S>

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

Formats the value using the given formatter.