num-traits 0.2.3

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crate documentation minimum rustc 1.8 Travis status

Numeric traits for generic mathematics in Rust.


Add this to your Cargo.toml:

num-traits = "0.2"

and this to your crate root:

extern crate num_traits;


This crate can be used without the standard library (#![no_std]) by disabling the default std feature. Use this in Cargo.toml:

version = "0.2"
default-features = false

The Float and Real traits are only available when std is enabled. The FloatCore trait is always available. MulAdd and MulAddAssign for f32 and f64 also require std, as do implementations of signed and floating- point exponents in Pow.

Implementations for i128 and u128 are only available when i128 is enabled.


Release notes are available in


The num-traits crate is tested for rustc 1.8 and greater.