Decision Workspace
factorial_engine vs factorial vs calc_rational
Side-by-side comparison of Rust crates
51
factorial_engine
experimentalv0.2.0
A library for producing factorials
44
factorial
growingv0.4.0
Convenient methods to compute the factorial, optionally checked.
66
calc_rational
stablev3.0.0
CLI calculator for rational numbers.
Core Metrics
| factorial_engine | factorial | calc_rational | |
|---|---|---|---|
| Health Score | 51 | 44 | 66 |
| Total Downloads | 3.8K | 118.3K | 23.4K |
| 30d Downloads | 72 | 2.7K | 38 |
| Dependents | 23 | 200 | 0 |
| Releases | 11 | 6 | 23 |
| Last Updated | 132d ago | 855d ago | 7d ago |
| Age | 7m | 7y 8m | 2y 11m |
Health Breakdown
factorial_engine
Maintenance
13
Quality
15
Community
6
Popularity
4
Documentation
13
factorial
Maintenance
6
Quality
10
Community
12
Popularity
6
Documentation
10
calc_rational
Maintenance
19
Quality
21
Community
6
Popularity
5
Documentation
15
Technical Details
| factorial_engine | factorial | calc_rational | |
|---|---|---|---|
| Version | 0.2.0 | 0.4.0 | 3.0.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT | MIT OR Apache-2.0 |
| Dependencies | 0 | 4 | 6 |
| Crate Size | 8KB | 12KB | 36KB |
| Features | 0 | 0 | 3 |
| Yanked % | 0.0% | 16.7% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | — | 1.93.1 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •calc_rational leads with a health score of 66/100, but none of the options score above 80.
- •factorial has the most downloads (118.3K), suggesting wider adoption.
- •factorial is depended on by 200 crates — strongest ecosystem trust.
- •⚠ factorial has not been updated in over a year.
- •factorial_engine, factorial are pre-1.0 — API may change.