https://github.com/cmpute/dashu

A library set of arbitrary precision numbers implemented in Rust.
https://github.com/cmpute/dashu

arbitrary-precision bigfloat bigint bignum-library multiple-precision rust

Last synced: about 2 months ago
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A library set of arbitrary precision numbers implemented in Rust.

• Host: GitHub
• URL: https://github.com/cmpute/dashu
• Owner: cmpute
• License: apache-2.0
• Created: 2022-06-29T06:48:48.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2025-11-08T04:13:15.000Z (7 months ago)
• Last Synced: 2025-12-13T23:38:28.123Z (5 months ago)
• Topics: arbitrary-precision, bigfloat, bigint, bignum-library, multiple-precision, rust
• Language: Rust
• Homepage:
• Size: 1.54 MB
• Stars: 96
• Watchers: 5
• Forks: 14
• Open Issues: 17
• Metadata Files:
  • Readme: README.md
  • License: LICENSE-APACHE

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README

          
# dashu

[![Crate](https://img.shields.io/crates/v/dashu.svg)](https://crates.io/crates/dashu)

[![Docs](https://docs.rs/dashu/badge.svg)](https://docs.rs/dashu)

[![Tests](https://github.com/cmpute/dashu/actions/workflows/tests.yml/badge.svg)](https://github.com/cmpute/dashu/actions)

[![MSRV 1.61](https://img.shields.io/badge/rustc-1.61%2B-informational.svg)](#dashu)

[![License](https://img.shields.io/crates/l/dashu)](#license)

A library set of arbitrary precision numbers (aka. big numbers) implemented in Rust. It's intended to be a Rust native alternative to GNU GMP + MPFR (+ MPC in future). It features:

- Pure rust, full `no_std` support.

- Focus on ergonomics & readability, and then efficiency.

- Optimized speed and memory usage.

- Current MSRV is 1.61.

## Sub-crates

- [`dashu-base`](./base): Common trait definitions

- [`dashu-int`](./integer): Arbitrary precision integers

- [`dashu-float`](./float): Arbitrary precision floating point numbers

- [`dashu-ratio`](./rational): Arbitrary precision rational numbers

- [`dashu-macros`](./macros): Macros for creating big numbers

`dashu` is a meta crate that re-exports all the types from these sub-crates. Please see the README.md in each subdirectory for crate-specific introduction.

## License

Licensed under either of

 * Apache License, Version 2.0

   ([LICENSE-APACHE](../LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)

 * MIT license

   ([LICENSE-MIT](../LICENSE-MIT) or https://opensource.org/licenses/MIT)

at your option.

## Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted

for inclusion in the work by you, as defined in the Apache-2.0 license, shall be

dual licensed as above, without any additional terms or conditions.