Struct Matrix2 

pub struct Matrix2 {
    pub rows: [[f64; 2]; 2],
}

A 2×2 matrix, row-major.

Fields

rows: [[f64; 2]; 2]

Rows.

Implementations

impl Matrix2

pub const IDENTITY: Self

The identity.

pub const ZERO: Self

All zeros.

pub const fn new(rows: [[f64; 2]; 2]) -> Self

From rows.

pub fn rotation(angle: f64) -> Self

A counter-clockwise rotation of angle radians.

pub const fn scaling(s: f64) -> Self

A uniform scaling.

pub const fn transposed(&self) -> Self

The transpose.

pub fn determinant(&self) -> f64

The determinant.

pub fn inverse(&self) -> OgeomResult<Self>

The inverse.

Errors

OgeomError::Numeric if the matrix is singular. See Matrix3::inverse for why this takes no tolerance.

pub fn is_equal(&self, other: &Self, eps: f64) -> bool

Whether every element agrees with other within eps.

Trait Implementations

impl Clone for Matrix2

fn clone(&self) -> Matrix2

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Matrix2

impl Debug for Matrix2

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

Formats the value using the given formatter.

impl Default for Matrix2

fn default() -> Self

Returns the “default value” for a type.

impl Mul for Matrix2

type Output = Matrix2

The resulting type after applying the * operator.

fn mul(self, o: Self) -> Self

Performs the * operation.

impl Mul<Vector2> for Matrix2

type Output = Vector2

The resulting type after applying the * operator.

fn mul(self, v: Vector2) -> Vector2

Performs the * operation.

impl PartialEq for Matrix2

fn eq(&self, other: &Matrix2) -> 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 StructuralPartialEq for Matrix2