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README.md
1# num-traits 2 3[![crate](https://img.shields.io/crates/v/num-traits.svg)](https://crates.io/crates/num-traits) 4[![documentation](https://docs.rs/num-traits/badge.svg)](https://docs.rs/num-traits) 5[![minimum rustc 1.8](https://img.shields.io/badge/rustc-1.8+-red.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html) 6[![build status](https://github.com/rust-num/num-traits/workflows/master/badge.svg)](https://github.com/rust-num/num-traits/actions) 7 8Numeric traits for generic mathematics in Rust. 9 10## Usage 11 12Add this to your `Cargo.toml`: 13 14```toml 15[dependencies] 16num-traits = "0.2" 17``` 18 19and this to your crate root: 20 21```rust 22extern crate num_traits; 23``` 24 25## Features 26 27This crate can be used without the standard library (`#![no_std]`) by disabling 28the default `std` feature. Use this in `Cargo.toml`: 29 30```toml 31[dependencies.num-traits] 32version = "0.2" 33default-features = false 34# features = ["libm"] # <--- Uncomment if you wish to use `Float` and `Real` without `std` 35``` 36 37The `Float` and `Real` traits are only available when either `std` or `libm` is enabled. 38The `libm` feature is only available with Rust 1.31 and later ([see PR #99](https://github.com/rust-num/num-traits/pull/99)). 39 40The `FloatCore` trait is always available. `MulAdd` and `MulAddAssign` for `f32` 41and `f64` also require `std` or `libm`, as do implementations of signed and floating- 42point exponents in `Pow`. 43 44Implementations for `i128` and `u128` are only available with Rust 1.26 and 45later. The build script automatically detects this, but you can make it 46mandatory by enabling the `i128` crate feature. 47 48## Releases 49 50Release notes are available in [RELEASES.md](RELEASES.md). 51 52## Compatibility 53 54The `num-traits` crate is tested for rustc 1.8 and greater. 55 56## License 57 58Licensed under either of 59 60 * [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0) 61 * [MIT license](http://opensource.org/licenses/MIT) 62 63at your option. 64 65### Contribution 66 67Unless you explicitly state otherwise, any contribution intentionally submitted 68for inclusion in the work by you, as defined in the Apache-2.0 license, shall be 69dual licensed as above, without any additional terms or conditions. 70