Struct Tensor3x3 

pub struct Tensor3x3 {
    pub data: [[f64; 3]; 3],
}

A 3×3 real-valued tensor stored in row-major order.

Used for permittivity, permeability, and conductivity of anisotropic media.

Fields

data: [[f64; 3]; 3]

Row-major elements: data[row][col].

Implementations

impl Tensor3x3

pub fn diagonal(d: f64) -> Self

Create a diagonal tensor with equal diagonal entries d.

pub fn zero() -> Self

Create a zero tensor.

pub fn from_diag(d0: f64, d1: f64, d2: f64) -> Self

Create a tensor from three diagonal entries.

pub fn mul_vec(&self, x: [f64; 3]) -> [f64; 3]

Multiply tensor by a 3-vector: y = T·x.

pub fn trace(&self) -> f64

Return the trace of the tensor.

pub fn transpose(&self) -> Self

Return the transpose of the tensor.

pub fn is_symmetric(&self, eps: f64) -> bool

Check whether the tensor is symmetric within tolerance eps.

Trait Implementations

impl Clone for Tensor3x3

fn clone(&self) -> Tensor3x3

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tensor3x3

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

Formats the value using the given formatter.

impl PartialEq for Tensor3x3

fn eq(&self, other: &Tensor3x3) -> 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 Copy for Tensor3x3

impl StructuralPartialEq for Tensor3x3