Decision Workspace
expr-solver-lib vs mathexpr vs expr-solver-bin
Side-by-side comparison of Rust crates
48
expr-solver-lib
growingv1.2.0
Mathematical expression evaluator with bytecode compilation and configurable numeric precision (f64 or 128-bit Decimal)
50
mathexpr
experimentalv0.1.1
A fast, safe mathematical expression parser and evaluator with bytecode compilation
46
expr-solver-bin
growingv1.2.0
Binary using the expr-solver-lib to solve math expressions from command line
Core Metrics
| expr-solver-lib | mathexpr | expr-solver-bin | |
|---|---|---|---|
| Health Score | 48 | 50 | 46 |
| Total Downloads | 1.4K | 501 | 1.2K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 7 | 2 | 0 |
| Releases | 7 | 2 | 7 |
| Last Updated | 216d ago | 142d ago | 216d ago |
| Age | 7m | 4m | 7m |
Health Breakdown
expr-solver-lib
Maintenance
14
Quality
12
Community
8
Popularity
4
Documentation
10
mathexpr
Maintenance
10
Quality
15
Community
7
Popularity
3
Documentation
15
expr-solver-bin
Maintenance
14
Quality
12
Community
6
Popularity
4
Documentation
10
Technical Details
| expr-solver-lib | mathexpr | expr-solver-bin | |
|---|---|---|---|
| Version | 1.2.0 | 0.1.1 | 1.2.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✓ Yes |
| License | MIT | MIT | MIT |
| Dependencies | 8 | 6 | 2 |
| Crate Size | 37KB | 27KB | 9KB |
| Features | 4 | 2 | 0 |
| Yanked % | 71.4% | 0.0% | 71.4% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | 1.70 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mathexpr leads with a health score of 50/100, but none of the options score above 80.
- •expr-solver-lib has the most downloads (1.4K), suggesting wider adoption.
- •mathexpr is pre-1.0 — API may change.