# symengine/symengine

SymEngine is a fast symbolic manipulation library, written in C++

Repository: https://github.com/symengine/symengine
Canonical: https://ross.abutalabs.com/products/symengine
Homepage: https://symengine.org
Language: C++
License: NOASSERTION
License Family: other
Topics: math, computer-algebra, c-plus-plus
Last push: 2026-08-26T18:36:55+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 67, longevity 100
- inputs: {"age_days": 6594, "days_push": 7, "days_rel": 7, "gap_med": 348.0, "n_releases_24m": 3}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1402, forks 313 (observed 2026-08-28T04:04:37.689770+00:00)

## What it is
SymEngine is a standalone fast C++ symbolic manipulation (computer algebra) library. It offers thin wrappers for other languages such as Python, Ruby, Julia, and Haskell, and can serve as an efficient backend for SymPy.

## Use cases
- perform fast symbolic math computations in C++
- speed up SymPy as a faster backend engine
- generate optimized code from symbolic expressions
- use a computer algebra library from Python, Ruby, Julia, or Haskell
- embed symbolic manipulation in production C++ applications

## When to choose
- you need fast symbolic manipulation with a C++ core
- you want a performant backend for SymPy or other CAS frontends
- you need symbolic-to-code generation for optimization
- you want MIT-licensed computer algebra with multi-language bindings

## When to avoid
- you need numerical linear algebra (use Eigen, Armadillo, or XTensor instead)
- you need a full-featured CAS with extensive math coverage (SymPy may be more complete)
- you only need casual interactive symbolic math in Python without performance concerns

## Facets
- artifact type: library
- maturity: active
- function: math
- domain: mathematics, developer-tools
- platform: cpp, python, cross-platform
- tags: computer-algebra, symbolic-manipulation, sympy-backend, code-generation, language-bindings, algorithms

## Member repositories
- symengine/symengine (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:37.689770+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 2026-08-30T04:39:00.135453+00:00, confidence not recorded.
  - readme: https://github.com/symengine/symengine (fetched 2026-08-28T04:04:37.689770+00:00, sha 8fc1285a5202)
  - homepage: https://symengine.org (fetched 2026-08-29T11:53:04.858761+00:00, sha d3024993cd9e)
  - site_page: https://symengine.org/inst/install.html (fetched 2026-08-29T11:53:04.873154+00:00, sha d5740da0b662)
  - site_page: https://symengine.org/misc/faq.html (fetched 2026-08-29T11:53:04.869680+00:00, sha d2d307ae7a3d)
  - site_page: https://symengine.org/design/doc_design.html (fetched 2026-08-29T11:53:04.876212+00:00, sha 262dbe8765fc)
  - site_page: https://symengine.org/symengine (fetched 2026-08-29T11:53:04.879959+00:00, sha 3fca2ab014f6)
- Data as of 2026-08-30T08:39:29.467469+00:00.