Struct Rng 

pub struct Rng { /* private fields */ }

A generator with explicit state.

Implementations

impl Rng

pub fn new(seed: u64) -> Self

Creates a generator from a seed.

pub fn unit(&mut self) -> f64

A uniform number in [0, 1).

pub fn symmetric(&mut self) -> f64

A uniform number in [-1, 1).

pub fn normal(&mut self, sigma: f64) -> f64

A normal number with standard deviation sigma.

The Box–Muller transform. The second value of the pair is thrown away: keeping it would mean state that depends on call history, and the order of calls would start to affect the result.

Trait Implementations

impl Clone for Rng

fn clone(&self) -> Rng

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rng

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

Formats the value using the given formatter.