Trait Real 

pub trait Real:
    Num
    + Signed
    + Div<Output = Self>
    + Rem<Output = Self>
    + PartialOrd {
    // Required methods
    fn from_f64(v: f64) -> Self;
    fn to_f64(self) -> f64;
    fn epsilon() -> Self;
    fn sqrt(self) -> Self;
    fn cbrt(self) -> Self;
    fn powf(self, e: Self) -> Self;
    fn powi(self, e: i32) -> Self;
    fn recip(self) -> Self;
    fn floor(self) -> Self;
    fn ceil(self) -> Self;
    fn round(self) -> Self;
    fn trunc(self) -> Self;
    fn fract(self) -> Self;
    fn copysign(self, other: Self) -> Self;
    fn abs_sub(self, other: Self) -> Self;
    fn min(self, other: Self) -> Self;
    fn max(self, other: Self) -> Self;
}

Core real number operations: conversion, powers, rounding, min/max.

Implemented for f32 and f64. This is the minimal trait bound needed by most generic math code.

Required Methods

fn from_f64(v: f64) -> Self

Convert from f64.

fn to_f64(self) -> f64

Convert to f64.

fn epsilon() -> Self

Machine epsilon for this type.

fn sqrt(self) -> Self

Square root.

fn cbrt(self) -> Self

Cube root.

fn powf(self, e: Self) -> Self

Raise to a floating-point power.

fn powi(self, e: i32) -> Self

Raise to an integer power.

fn recip(self) -> Self

Reciprocal: 1 / self.

fn floor(self) -> Self

Floor: largest integer <= self.

fn ceil(self) -> Self

Ceiling: smallest integer >= self.

fn round(self) -> Self

Round to nearest integer.

fn trunc(self) -> Self

Truncate toward zero.

fn fract(self) -> Self

Fractional part: self - floor(self).

fn copysign(self, other: Self) -> Self

Copy the sign of other to the magnitude of self.

fn abs_sub(self, other: Self) -> Self

max(self - other, 0).

fn min(self, other: Self) -> Self

Minimum of self and other.

fn max(self, other: Self) -> Self

Maximum of self and other.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Real for f32

fn from_f64(v: f64) -> Self

fn to_f64(self) -> f64

fn epsilon() -> Self

fn sqrt(self) -> Self

fn cbrt(self) -> Self

fn powf(self, e: Self) -> Self

fn powi(self, e: i32) -> Self

fn recip(self) -> Self

fn floor(self) -> Self

fn ceil(self) -> Self

fn round(self) -> Self

fn trunc(self) -> Self

fn fract(self) -> Self

fn copysign(self, other: Self) -> Self

fn abs_sub(self, other: Self) -> Self

fn min(self, other: Self) -> Self

fn max(self, other: Self) -> Self

impl Real for f64

fn from_f64(v: f64) -> Self

fn to_f64(self) -> f64

fn epsilon() -> Self

fn sqrt(self) -> Self

fn cbrt(self) -> Self

fn powf(self, e: Self) -> Self

fn powi(self, e: i32) -> Self

fn recip(self) -> Self

fn floor(self) -> Self

fn ceil(self) -> Self

fn round(self) -> Self

fn trunc(self) -> Self

fn fract(self) -> Self

fn copysign(self, other: Self) -> Self

fn abs_sub(self, other: Self) -> Self

fn min(self, other: Self) -> Self

fn max(self, other: Self) -> Self

Implementors