{"adoption": {"forks": 577, "observed_at": "2026-08-28T04:08:30.596285+00:00", "stars": 3962}, "canonical_url": "https://ross.abutalabs.com/products/numcpp", "card": {"archived": false, "artifact_type": "library", "description": "C++ implementation of the Python Numpy library", "domain": ["data-science", "developer-tools"], "enriched": true, "function": ["math", "data-science", "machine-learning"], "health_score": 82, "homepage": "https://dpilger26.github.io/NumCpp", "language": "C++", "license": "MIT", "license_family": "permissive", "maturity": "active", "member_repos": ["dpilger26/NumCpp"], "name": "dpilger26/NumCpp", "platform": ["cpp", "cross-platform", "windows"], "pushed_at": "2026-03-17T02:41:59+00:00", "repo": "dpilger26/NumCpp", "stars": 3962, "tags": ["numpy", "header-only", "ndarray", "numerical-computing", "scientific-computing", "linear-algebra", "algorithms", "linux", "macos"], "topics": ["python", "numpy", "c-plus-plus", "numerical-analysis", "scientific-computing", "algorithms", "data-structures", "cpp", "mathematical-functions"], "urls": [], "use_cases": ["port numpy code to c++", "n-dimensional array math in c++", "linear algebra and matrix operations in c++", "scientific computing without python", "numpy-style api for c++ projects", "numerical analysis in c++"], "what_it_is": "NumCpp is a templatized, header-only C++ library that reimplements the Python NumPy API, centered on an NdArray container with NumPy-style mathematical functions. It supports C++17 through C++23 and requires Boost 1.73+.", "when_to_avoid": ["you need GPU acceleration or distributed arrays", "you need tensors beyond 2D plus DataCube convenience", "you're already in Python and can just use NumPy"], "when_to_choose": ["you want NumPy-like array math in a C++ codebase", "you need a header-only dependency with no build step", "you're porting Python numerical code to C++"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/numcpp", "repo": "dpilger26/NumCpp", "role": "main", "score": 74}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:08:30.596285+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:24:27.029088+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9d96f4f2032b4cf70bc6211103c90879278beb125b20206f1e191a2cfae89863", "fetched_at": "2026-08-28T04:08:30.596285+00:00", "kind": "readme", "missing": false, "url": "https://github.com/dpilger26/NumCpp"}, {"content_hash": "f727afb1b13b1c5f995cbba984f15770fa192b3638414588562a2abfb2017b67", "fetched_at": "2026-08-29T09:17:54.546937+00:00", "kind": "homepage", "missing": false, "url": "https://dpilger26.github.io/NumCpp"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 72, "longevity": 100, "rhythm": 63}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3129, "days_push": 169, "days_rel": 169, "gap_med": 75.0, "n_releases_24m": 7}, "score": 74, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}