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num

v0.4.3 Growing

A collection of numeric types and traits for Rust, including bigint, complex, rational, range iterators, generic integers, and more!

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

Quick Verdict

  • โœ•Not updated for 1+ year
  • !Pre-1.0: API may have breaking changes
  • โœ“Massive adoption (22.0K crates depend on it)
  • โœ“Permissive license (MIT OR Apache-2.0)
  • !60% of releases were yanked

Security

Checking security advisories...
Downloads
178.8M
Dependents
22.0K
Releases
58
Size
10KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

13.8M downloads in the last 30 days (461.4K/day), up 23% from the previous period.

๐Ÿ›๏ธ
Foundational crate

22.0K crates depend on num โ€” it's part of the Rust ecosystem's core infrastructure. Removing it from your dependency tree would be extremely difficult.

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Single maintainer risk

num has only 1 owner despite 22.0K 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 11+ years old, num hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 9KB, num is lightweight. Small crate size correlates with focused, well-scoped functionality.

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Notable yanked versions

60% of releases have been yanked. Check version history before pinning.

๐ŸŒŸ
Used by top crates

Notable dependents include num-derive, fraction, bollard, async-nats, htmlescape. When high-quality crates choose num, it's a strong quality signal.

Health Breakdown

Maintenance 7/25

Recency, release consistency, active ratio

Quality 11/25

Yanked ratio, deps, size, maturity, features

Community 15/20

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
368K/day avg+66%
0200K400K600K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.4.3
53%
v0.4.1
17%
v0.4.0
13%
v0.2.1
12%
v0.3.1
5%

Release Timeline

58 releases35 yankedsince 2014
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2014
10
2015
26
2016
7
2017
5
2018
2
2019
2020
3
2021
1
2022
2023
1
2024
2
2025
1
2026
Less
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Yanked

Feature Flags

default =["std"]

std*libmrandallocserdenum-bigint

README

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Maintainers

Dependencies
6
direct dependencies
Dependents
22.0K
crates depend on num

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