Rust library for numerical integration of real-valued functions

In plain words

Integrate is a lightweight Rust library for numerical integration of real-valued functions. It provides multiple numerical methods including Newton-Cotes approaches like the trapezoidal and Simpson's rules, Gauss quadrature variants such as Gauss-Legendre and Gauss-Hermite, and adaptive methods including adaptive Simpson's and Romberg's method. The library is designed for developers needing to approximate definite integrals efficiently with a simple interface.

written from the facts on this page · September 2026

From the sources

a small, lightweight crate for numerical integration written in Rust. - mtantaoui/Integrate

Integrate is a small, lightweight Rust library for performing numerical integration of real-valued functions. It is designed to integrate functions, providing a simple and efficient way to approximate definite integrals using various numerical methods. Numerical integration is concerned with developing algorithms to approximate the integral of a function $f(x)$ . The most commonly used algorithms are Newton-Cotes formulas, Romberg's method, Gaussian quadrature, and to lesser extents Hermite's formulas and certain adaptive techniques. All of the numerical integration techniques listed above assume that the integrand is continuous on the interval of integration. The error estimates generally…from github.com

In the maker’s words, at launch

Integrate is a fast, small, lightweight Rust library for performing numerical integration of real-valued functions. It is designed to integrate functions, providing a simple and efficient way to approximate definite integrals using various numerical methods. Integrate supports a variety of numerical integration…

• 
  Rust Vector and Quaternion Lib2025 · github.com · ▲128

  I use this library I made for Vectors and Quaternions in many personal projects. I've open-sourced it, in case anyone else would get use out of it. I use this on various projects, including quadcopter firmware, a graphics engine, a cosmology simulation, and several molecular dynamics applications. No_std compatible.

• 
  Algorithm Cookbook in Rust2017 · github.com · ▲320

  Common data structures and algorithms in Rust. Contribute to EbTech/rust-algorithms development by creating an account on GitHub.

• CA
  Chebyshev approximation calculator2024 · stuffmatic.com · ▲278

  Hi everyone, here's a web app I made that generates code for efficiently approximating mathematical functions. This is useful when performance matters more than perfect accuracy, for example in embedded systems. The app uses Chebyshev expansions, which despite their theoretical depth result in suprisingly compact and readable code in practice. This code is generated for you and using it does not require any knowledge of the underlying theory. Source code and more info: https://github.com/stuffmatic/chebyshev-calculator

• 
  A SIMD-accelerated noise library in Rust2018 · github.com · ▲73

  SIMD noise library for Rust. Contribute to verpeteren/rust-simd-noise development by creating an account on GitHub.

• 
  I Wrote a Book on Data Analysis with Rust Notebooks2020 · datacrayon.com · ▲105

  A practical book on Data Analysis with Rust Notebooks that teaches you the concepts and how they’re implemented in practice.

• 
  High-Performance Wavelet Matrix for Python, Implemented in RustDec 2025 · pypi.org · ▲93

  I built a Rust-powered Wavelet Matrix library for Python. There were surprisingly few practical Wavelet Matrix implementations available for Python, so I implemented one with a focus on performance, usability, and typed APIs. It supports fast rank/select, top-k, quantile, range queries, and even dynamic updates. Feedback welcome!

• 
  /dev/null▲494

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

• 
  Run full iOS 16.5 firmware on Android Devices▲470

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 22h ago · github.com

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 24d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

• 
  Lovable▲1,477

  Hey HN! Previous CERN physicist turned hacker here. We've developed a way to make AI coding actually work by systematically identifying and fixing places where LLMs typically fail in full-stack development. Today we're launching as Lovable (previously gptengineer.app) since it's such a big change. The problem? AI writing code typically make small mistakes and then get stuck. Those who tried know the frustration. We fixed most of this by mapping out where LLMs fail in full-stack dev and engineering around those pitfalls with prompt chains. Thanks to this, in all comparisons I found with: v0,…

  AI · 2024 · lovable.dev

• 
  Superchat▲1,427

  AI Agents for WhatsApp Business, Instagram & Co

  Growth · 2024 · superchat.com

• 
  Postiz▲1,188

  Streamline your social media with Postiz. Schedule posts, analyze performance, and manage all accounts in one place.

  Dev tools · 2024 · postiz.com

• 
  I built a(nother) house optimized for LAN parties▲1,117

  I wasn't quite sure if this qualified as "Show HN" given you can't really download it and try it out. However, dang said[0]: > If it's hardware or something that's not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos. Hopefully I did that? Additionally, I've put code and a detailed guide for the netboot computer management setup on GitHub: https://github.com/kentonv/lanparty Anyway, if this shouldn't have been Show HN, I apologize! [0]…

  Dev tools · 2024 · lanparty.house

• 
  Raycast Notes▲1,058

  Unlock a new level productivity with AI, Cloud Sync and more

  Work · 2024 · raycast.com

• 
  Cap▲1,047

  Beautiful screen recordings, owned by you. 100% open source.

  Dev tools · 2024 · cap.so