Enum DeterminantSign 

pub enum DeterminantSign {
    Negative,
    Zero,
    Positive,
}

The exact sign of a determinant.

Available with the exact Cargo feature.

This type makes the three possible outcomes explicit instead of exposing a raw integer that could contain values other than −1, 0, or +1.

Examples

use la_stack::prelude::*;

let sign = Matrix::<2>::identity().det_sign_exact();
assert_eq!(sign, DeterminantSign::Positive);
assert_eq!(sign.as_i8(), 1);

Variants

Negative

The determinant is strictly negative.

Zero

The determinant is exactly zero.

Positive

The determinant is strictly positive.

Implementations

impl DeterminantSign

pub const fn as_i8(self) -> i8

Return the conventional numeric sign −1, 0, or +1.

Trait Implementations

impl Clone for DeterminantSign

fn clone(&self) -> DeterminantSign

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeterminantSign

impl Debug for DeterminantSign

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

Formats the value using the given formatter.

impl Eq for DeterminantSign

impl PartialEq for DeterminantSign

fn eq(&self, other: &DeterminantSign) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DeterminantSign