Top 7 Mathematica Mathematica Projects

WolframLanguageForJupyter

4 810 1.3 Mathematica

Wolfram Language kernel for Jupyter notebooks

Project mention: Mathics: A free, open-source alternative to Mathematica | news.ycombinator.com | 2022-11-04
feyncalc

1 251 8.7 Mathematica

Mathematica package for algebraic calculations in elementary particle physics.

Project mention: It’s Time to Launch the Wolfram Institute | news.ycombinator.com | 2022-04-07

I expect that's a pretty heavy undercount as they've not pursued open-source. That's disappointing to me and I agree they missed out on a lot; I think those two are strongly connected. But also he kept his business afloat and did crazy (good) science on the side.
Did find this though. Looks neat!
https://github.com/FeynCalc/feyncalc
InfluxDB

www.influxdata.com
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lsp-wl

0 177 0.0 Mathematica

A Wolfram Language Server
BernDirac

0 44 1.2 Mathematica

A Mathematica package for performing calculations involving matrices/vectors in the Dirac notation which is usually used in quantum mechanics/quantum computing.
ScienceNotebooks

0 44 1.3 Mathematica

Collection of tools and stylesheet for scientific writting and learning (through Anki)
DualNumbers

0 16 3.0 Mathematica

Implementation of dual numbers for automatic differentiation of programs
project-orbitron

9 5 0.0 Mathematica

A unique control algorithm in Mathematica for 4WIS/WID vehicles; PATENTED (KR. PATENT 10-2268833)

Project mention: Project Orbitron: A spherical-wheeled vehicle with a unique patented control algorithm implemented in Mathematica. | reddit.com/r/SideProject | 2022-02-27

This is a Robotics + Algorithm project I worked on for several months. The vehicle’s each spherical wheel can steer and drive independently from others, hence the mechanism “Four-Wheel-Independent-Steering&Driving” (4WIS/D). Controlling such vehicle with so many motors led me to build an equally-efficient and elegant algorithm to control all four wheels simultaneously based on the idea of radius of curvature. The algorithm now passed its patent (KR. PATENT 10-2268833) github link youtube video
SonarQube

www.sonarqube.org
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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2022-11-04.