dashu-rs

What is dashu?

dashu is an arbitrary-precision number library written in pure Rust, aiming to be a Rust-native alternative to GNU GMP + MPFR. It provides unlimited-precision integers, rationals, floats, and complex numbers with correct rounding, split across a set of Rust crates (dashu-int, dashu-float, dashu-ratio, dashu-cmplx, …).

What is dashu-rs?

dashu-rs is a standalone Python package that brings dashu's number types to Python. It is a native extension built with PyO3, distributed as a prebuilt wheel on PyPI, and installs anywhere with pip — no Rust toolchain, no compiler, and no knowledge of the dashu Rust crates required:

pip install dashu-rs

from dashu import UBig, IBig, RBig, FBig, DBig, CBig

The exposed types — arbitrary-precision integers (UBig/IBig), rationals (RBig), binary/decimal floats (FBig/DBig), and complex numbers (CBig) — are Send + Sync (free-threaded-Python compatible), accept native Python numbers in their constructors, and interoperate with int/float/Fraction in arithmetic.

Usage

See USAGE.md for the full guide — installation, constructors, operations, formatting, transcendentals, and the module-level math API.

It is also rendered in the dashu user guide at https://zyxin.xyz/dashu/python.html.

Project links

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Latest release

1 maintainer

PyPI data
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Avatar for cmpute from gravatar.com cmpute

Credits

Author: Jacob Zhong

License

MIT OR Apache-2.0

Requires

Python >=3.8

Tags

mathematics numerics

Classifiers

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