The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving.
⚡ Executive Summary & Quick Facts
Authoritative Sourcemath is math is an open-source project written in C++: The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of October 2026), stan-dev/math has accumulated 843 GitHub stars and 224 forks. It is written in C++, licensed under BSD-3-Clause, and ranks #8,045 globally. It is actively maintained with the latest commit recorded on Oct 23, 2026.”
| Repository | stan-dev/math ↗ |
|---|---|
| Primary Category | automatic differentiation |
| Language & Stack | C++ |
| Software License | BSD-3-Clause |
| Community Traction | ★ 843 stars · ⑂ 224 forks · #8,045 globally |
| Maintenance | ● Active (Last commit: Oct 23, 2026) · 329 open issues |
| Target Audience | Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 92/100 · Grade AYes, math is actively maintained. Continuous telemetry recorded the last code commit on Oct 23, 2026 (8 days ago). Supported by 843 stars and 224 community forks, this repository holds a calculated health index of 92/100, reflecting very active (commits within last 14 days) and active community feedback (329 open).
Star History
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+21
STARS · LAST 30 DAYS
1
PER DAY
#641
MOST-STARRED C++
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +21 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +4 | +11 |
math gained 21 stars in the last 30 days, about 1 a day, and now has 843. It is about 11 years old and has averaged roughly 77 stars a year. It ranks #641 among C++ repositories and #8,045 across all languages on GitHubRepo.
Trending Record
8
DAYS ON TRENDING
#9104
BEST RANK
Oct 21, 2026
FIRST APPEARANCE
Active
STATUS TODAY
math has maintained a continuous presence across global trending indexes, peaking at #9104. Below is the 30-day activity profile:
💡 Overview
math is an open-source project written in C++: The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving.
Engineered for speed, consistency, and developer ease, it solves common hurdles in automatic-differentiation, boost, cpp. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C++ for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/stan-dev/math.git
cd math⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C++20 compliant compiler (GCC 11+, Clang 13+, MSVC)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
math coordinates its core functionality through a modular C++ pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed math into C++ backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open BSD-3-Clause license.
🚀 Getting Started
Install math using your package manager: `git clone https://github.com/stan-dev/math.git`
Initialize your project workspace or configuration file for math.
Import math into your codebase or invoke it directly from your terminal.
Execute your test suite or run `math --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
stan-dev/math is currently ranked #8,045 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
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|---|---|---|---|---|
| #8,040 | jvoisin/snuffleupagus | PHP | ★ 844 | Compare ↗ |
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| #8,040 | lostb1t/Gelato | C# | ★ 844 | Compare ↗ |
| #8,045 | stan-dev/math This Project | C++ | ★ 843 | |
| #8,045 | matburt/mobileorg-android | Java | ★ 843 | Compare ↗ |
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Frequently Asked Questions
What does math do? +
The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving.
Is math actively maintained in 2026? +
Yes, math is actively maintained. The latest code push was recorded on Oct 23, 2026 (8 days ago). It holds a calculated Maintenance Health Score of 92/100 (A rating) with 843 stars and 329 open issues.
What language is math written in? +
The primary language is C++. Topics include: automatic-differentiation, boost, cpp, eigen, math.
How many stars does math have? +
math has 843 stars and 224 forks on GitHub.
How does math rank among GitHub repositories? +
With 843 stars, stan-dev/math is ranked #8,045 globally across all repositories tracked on GitHubRepo and #641 among C++ projects.
What license is math distributed under? +
The repository reports a BSD-3-Clause license. Always verify the repository LICENSE file for legal terms.
