Struct TropicalNumber 

pub struct TropicalNumber<T>(pub T)
where
    T: Float;

A number in the tropical (max-plus) semiring

Tropical addition is max, tropical multiplication is addition

Tuple Fields

0: T

Implementations

impl<T> TropicalNumber<T>

where T: Float,

pub fn neg_infinity() -> TropicalNumber<T>

Additive identity (negative infinity)

pub fn zero() -> TropicalNumber<T>

Multiplicative identity (zero in regular arithmetic)

pub fn tropical_zero() -> TropicalNumber<T>

Additive identity (same as neg_infinity for tropical)

pub fn tropical_one() -> TropicalNumber<T>

Multiplicative identity (same as zero for tropical)

pub fn new(value: T) -> TropicalNumber<T>

Create from regular number

pub fn value(&self) -> T

Get the underlying value

pub fn is_zero(&self) -> bool

Check if this is the zero element (negative infinity)

pub fn is_one(&self) -> bool

Check if this is the one element (zero)

pub fn is_infinity(&self) -> bool

Check if this is infinite (either positive or negative)

pub fn tropical_add(self, other: TropicalNumber<T>) -> TropicalNumber<T>

Tropical addition (max operation)

pub fn tropical_mul(self, other: TropicalNumber<T>) -> TropicalNumber<T>

Tropical multiplication (addition)

pub fn tropical_pow(self, n: T) -> TropicalNumber<T>

Tropical power (scalar multiplication)

pub fn from_log_prob(log_p: T) -> TropicalNumber<T>

Convert from log-probability to tropical number

pub fn to_prob(self) -> T

Convert tropical number back to probability (via exp)

impl TropicalNumber<f64>

pub const ZERO: TropicalNumber<f64>

pub const ONE: TropicalNumber<f64>

impl TropicalNumber<f32>

pub const ZERO: TropicalNumber<f32>

pub const ONE: TropicalNumber<f32>

Trait Implementations

impl<T> Add for TropicalNumber<T>

where T: Float,

type Output = TropicalNumber<T>

The resulting type after applying the + operator.

fn add(self, other: TropicalNumber<T>) -> TropicalNumber<T>

Performs the + operation.

impl<T> Clone for TropicalNumber<T>

where T: Clone + Float,

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for TropicalNumber<T>

where T: Debug + Float,

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

Formats the value using the given formatter.

impl<T> Mul for TropicalNumber<T>

where T: Float,

type Output = TropicalNumber<T>

The resulting type after applying the * operator.

fn mul(self, other: TropicalNumber<T>) -> TropicalNumber<T>

Performs the * operation.

impl<T> Neg for TropicalNumber<T>

where T: Float,

type Output = TropicalNumber<T>

The resulting type after applying the - operator.

fn neg(self) -> TropicalNumber<T>

Performs the unary - operation.

impl<T> PartialEq for TropicalNumber<T>

where T: PartialEq + Float,

fn eq(&self, other: &TropicalNumber<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> PartialOrd for TropicalNumber<T>

where T: PartialOrd + Float,

fn partial_cmp(&self, other: &TropicalNumber<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T> Copy for TropicalNumber<T>

where T: Copy + Float,

impl<T> StructuralPartialEq for TropicalNumber<T>

where T: Float,