Struct Jacobian2x2 

pub struct Jacobian2x2<T: Float> {
    pub m11: T,
    pub m12: T,
    pub m21: T,
    pub m22: T,
}

2×2 Jacobian matrix for a bilinear quad with nodes [A,B,C,D] at reference coords (-1,-1), (1,-1), (1,1), (-1,1).

Fields

m11: T

Entry (1,1) of the Jacobian matrix

m12: T

Entry (1,2) of the Jacobian matrix

m21: T

Entry (2,1) of the Jacobian matrix

m22: T

Entry (2,2) of the Jacobian matrix

Implementations

impl<T: Float> Jacobian2x2<T>

pub fn for_quad( xi: T, eta: T, a: Point2<T>, b: Point2<T>, c: Point2<T>, d: Point2<T>, ) -> Self

Compute J(xi,eta) = ∑ Ni,xi * Xi for i=1..4

pub fn det(self) -> T

Determinant det(J)

pub fn inverse(self) -> Option<Jacobian2x2<T>>

Inverse J⁻¹

Trait Implementations

impl<T: Clone + Float> Clone for Jacobian2x2<T>

fn clone(&self) -> Jacobian2x2<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Float> Debug for Jacobian2x2<T>

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

Formats the value using the given formatter.

impl<T: PartialEq + Float> PartialEq for Jacobian2x2<T>

fn eq(&self, other: &Jacobian2x2<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Copy + Float> Copy for Jacobian2x2<T>

impl<T: Float> StructuralPartialEq for Jacobian2x2<T>