Struct Tensor4D 

pub struct Tensor4D {
    pub components: [[f64; 4]; 4],
}

Tensor4D for General Relativity (4x4 spacetime tensor)

Fields

components: [[f64; 4]; 4]

4x4 matrix components [row][col]

Implementations

impl Tensor4D

pub fn zeros() -> Self

Create a new tensor with all zeros

pub fn identity() -> Self

Create identity tensor

pub fn minkowski() -> Self

Create Minkowski metric (flat spacetime)

pub fn schwarzschild_metric(mass: f64, r: f64) -> Self

Create Schwarzschild metric (black hole)

pub fn get(&self, row: usize, col: usize) -> f64

Get component at (row, col)

pub fn set(&mut self, row: usize, col: usize, value: f64)

Set component at (row, col)

pub fn determinant(&self) -> f64

Calculate determinant (for volume elements)

Trait Implementations

impl Clone for Tensor4D

fn clone(&self) -> Tensor4D

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tensor4D

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

Formats the value using the given formatter.

impl PartialEq for Tensor4D

fn eq(&self, other: &Tensor4D) -> 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 Tensor4D

impl StructuralPartialEq for Tensor4D