Qalculate!
Some data may be outdated — see provenance labels.
Qalculate! library and CLI observed · 2026-09-26
Health v2 · maintenance only
89/100
- Activity 96
- Release rhythm 74
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 48.5
- age_days: 3792
- days_rel: 99
- days_push: 27
- n_releases_24m: 13
Adoption not part of the score
2676 stars · 196 forks observed · 2026-09-26
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Qalculate! is a multi-purpose cross-platform desktop calculator library (libqalculate) with a CLI program (qalc) and GTK/Qt frontends. It combines everyday calculation tools with advanced features like symbolic math, unit conversion, arbitrary precision, and plotting.
Use cases
- convert units and currencies from the command line
- solve equations and compute integrals symbolically
- calculate with arbitrary precision and uncertainty propagation
- do quick percent and everyday calculations
- plot mathematical functions
- embed a powerful math engine in other applications
When to choose
- you need a powerful calculator with symbolic algebra and unit handling
- you want a CLI calculator for scripting or quick terminal math
- you need a C++ math evaluation library with a rich function library
When to avoid
- you need a full computer algebra system like Mathematica or SymPy for heavy symbolic work
- you need a simple four-function calculator with minimal dependencies
- you need matrix-heavy numerical computing like MATLAB or NumPy
Facets
library · maturity active
math cli gui mathematics education cross-platform windows cli cross-platform cpp calculator symbolic-math unit-conversion arbitrary-precision currency-conversion scientific-calculator command-line linux macos
2 sources
- readme: https://github.com/Qalculate/libqalculate · fetched 2026-09-26 · a851f65d3987
- homepage: https://qalculate.github.io/ · fetched 2026-08-29 · 95e6fec823b4
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Qalculate/libqalculate | main | 89 |
| Qalculate/qalculate-gtk | frontend | 89 |
| Qalculate/qalculate-qt | frontend | 89 |
For agents
markdown · JSON · MCP: product_card(name="Qalculate/libqalculate")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem