Repositories

Contains several downloadable files to 3D-print mathematical objects.

Interactive online gallery with 3 Bruhat-Tits buildings represented in 3D. The 3D picture can be rotated and displayed at different scales. 
The drawing process is detailed in the following arXiv.org PDF file: https://arxiv.org/pdf/2011.11707v2

The Erlangen campus of the FAU owns a collection of mathematical objects and models representing many different mathematical areas. Some of the objects can be visited at the Math building during opening hours for free, while a catalogue is available online (in German).

A collection of historical mathematical models located at the Georg-August-Universität Göttingen. It includes about 540 exhibits spanning from the 18th to the 21st century and covers all areas of mathematics. The collection also contains more than 60 mathematical instruments.

Access to the model collection in Göttingen is free and is part of the public space of the Mathematical Institute, Bunsenstrasse 3-5, 37073 Göttingen, and may be visited by anyone within the opening hours of the institute.

Collection of physical (sculpture, thread models) mathematical objects – such as curves or surfaces – owned by the University of Tokyo.

A collection of interactive illustrations of complex systems and complex dynamical processes. All illustrations include explanations of the underlying systems and of the illustration, sometimes including references. Code for selected illustrations is available in a GitHub repository. The website states they are open to corrections and ideas by email, but no other way to contribute.

A collection of chart types classified by types of input data format. For each chart type, the website includes the definition, common caveats, and links to guides on using the charts in Python, d3js, React, and R.

A curated collection of links to resources for data visualization, including textbooks, lecture notes, tutorials, and other learning material. Not open to contributions.

A collection of geometry models. Each model comes with a mathematical description of the object, an illustration and downloadable source code. As the website relies on Java it is now hard to browse the collection.

Online 3D models of Singular Algebraic Surfaces. Each illustration comes with the name of the surface, the equation defining it, and an animated picture where you can see the surface rotating.

A gallery of (combinatorial) graphs produced by using LaTeX and TikZ, along with their source code.

Searchable database of “interesting” graphs, where here a graph is interesting if one of the (registered) users of the website decides so. It also aims to serve as a central repository for complete lists of graphs (which can be downloaded in several formats) of various graph classes and the generators that can be used to generate these graphs. Registered users can add new graphs.

The Institut Henry Poincaré owns a collection of around 600 physical models, representing objects from various mathematical areas. Some of these objects are visible at the IHP Library (free to visit during opening hours) and at the Maison Poincaré Museum (part of the permanent exhibition), both in Paris. It contains sculptures, 3D-printed objects, knitting, etc. The list is available here.

Contains a gallery of illustrations of mathematical concepts ranging through all areas of mathematics, a catalogue of math related exhibitions as well as films, 3D printable files, and other medias.

Maths pictures contain a mathematical description of their content. Authors also have the possibility to include the necessary files to reproduce them – be it high resolution pictures, equations behind them or source files for visualization programs.

The LMFDB is a database of mathematical objects arising in number theory and arithmetic geometry that illustrates some of the mathematical connections predicted by the Langlands program. It does have visualizations for the functions.

The entire source code is available on Github.

Contains a gallery of mathematical artwork as well as a list of mathematical art exhibitions. These include fashion, art, and film (as of now).

A repository of the Max Planck Institute for Mathematics in the Sciences in Leipzig, dedicated to mathematical research data, namely all digital objects that arise during the process of doing research or are a result thereof. It is open to contributions with some restrictions: publications are only possible for scientists of the MPI MiS and their collaborators.

User-driven database of knitting and crochet patterns, including many patterns for mathematics illustrations, that you can find by searching "Mathematics". Requires a free account to browse. Users can contribute patterns and track projects.

Contains several downloadable files to 3D-print mathematical objects.

Contains examples of pictures made with TikZ. Each illustration comes with a short description and its source code. Everything is licensed under CC-BY-SA and can therefore be reused.