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num-rational

v0.4.2 Growing

Rational numbers implementation for Rust

MIT OR Apache-2.0 Edition 2021 MSRV 1.60
AlgorithmsData structuresScience #mathematics#numerics

Quick Verdict

  • โœ•Not updated for 1+ year
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (3.4K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
249.6M
Dependents
3.4K
Releases
21
Size
28KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

17.9M downloads in the last 30 days (598.3K/day), up 23% from the previous period.

๐Ÿ”—
Widely adopted

3.4K crates depend on num-rational. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

num-rational has only 1 owner despite 3.4K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 9+ years old, num-rational hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 27KB, num-rational is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include num, pyo3, nalgebra, av1-grain, num-order. When high-quality crates choose num-rational, it's a strong quality signal.

Health Breakdown

Maintenance 6/25

Recency, release consistency, active ratio

Quality 16/25

Yanked ratio, deps, size, maturity, features

Community 14/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
478K/day avg+65%
0200K400K600K800K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.4.2
49%
v0.4.1
26%
v0.2.4
12%
v0.3.2
10%
v0.4.0
4%

Release Timeline

21 releases1 yankedsince 2016
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2016
2
2017
5
2018
4
2019
1
2020
5
2021
1
2022
1
2023
2024
1
2025
1
2026
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Yanked

Feature Flags

default =["num-bigint", "std"]

std*serdenum-bigint*num-bigint-std

README

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Maintainers

Dependencies
4
direct dependencies
Dependents
3.4K
crates depend on num-rational

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