A library set of arbitrary precision numbers (aka. big numbers) implemented in Rust. It's a Rust native alternative to GNU GMP + MPFR + MPC. It features:
- Pure rust, full
no_stdsupport. - Focus on ergonomics & readability, and then efficiency.
- Optimized speed and memory usage.
- Current MSRV is 1.68.
dashu-base: Common trait definitionsdashu-int: Arbitrary precision integersdashu-float: Arbitrary precision floating point numbersdashu-ratio: Arbitrary precision rational numbersdashu-cmplx: Arbitrary precision complex numbersdashu-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.
dashu-python is a user-friendly test field for the core dashu
functionalities: through the dashu-rs
package on PyPI, users can try dashu's arbitrary-precision integers, rationals,
floats, and complex numbers from Python to get an idea of what dashu is capable
of — no Rust toolchain needed. Beyond exploring dashu, it also stands on its own
as a standalone arbitrary-precision number package for the Python ecosystem.
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option.
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.