# mattt/Euler

Swift Custom Operators for Mathematical Notation

Repository: https://github.com/mattt/Euler
Canonical: https://ross.abutalabs.com/products/mattt-euler
Language: Swift
License: MIT
License Family: permissive
Topics: swift, math, operator, notation, playground
Archived: true
Last push: 2021-04-20T16:53:44+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4411, "days_push": 1961, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1148, forks 59 (observed 2026-08-28T04:03:46.186084+00:00)

## What it is
A Swift library that implements mathematical functions and constants using custom operators from the Math Symbols character set, enabling traditional mathematical notation like ∑, √, and ∘ directly in Swift code. It is explicitly not recommended for production and is best suited for Swift Playgrounds for teaching and learning mathematics.

## Use cases
- write math expressions in Swift using traditional notation
- teach logic and mathematics in Swift Playgrounds
- use symbols like π, ∑, √, and ∘ in Swift code
- demonstrate custom operator overloading in Swift
- explore mathematical notation interactively

## When to choose
- building educational playgrounds or demos with mathematical notation
- teaching math or logic concepts using Swift
- experimenting with Swift custom operators

## When to avoid
- any production codebase
- projects where operator readability matters for team collaboration
- performance-critical numerical computing

## Facets
- artifact type: library
- maturity: maintenance
- function: math, developer-tools
- domain: mathematics, education, programming-languages
- platform: -
- tags: custom-operators, mathematical-notation, swift-playgrounds, teaching, swift, macos, ios

## Member repositories
- mattt/Euler (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:46.186084+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:33:50.986991+00:00, confidence not recorded.
  - readme: https://github.com/mattt/Euler (fetched 2026-08-28T04:03:46.186084+00:00, sha 2aca33829b6e)
- Data as of 2026-08-30T08:39:29.467469+00:00.