The poster for IDM 2026 is here! It is based on this year’s theme, Mathematics and Hope, and features a circular rosette pattern.
The poster is available in several languages and comes in two versions: a full-color design and a black-and-white version that you can color yourself.
Big media and user response
Big media and user response
Mar. 7, 2013
We are very happy that the user response to the new IMAGINARY platform was so big - too big for our server capacity. Today in the morning we registered 1.3 million accesses on the site (before 11:30 am) and we had to react quickly to shift the website to a new server. This caused several delays and also the platform was not online for about 2 hours. We are very sorry for this!
Now the platform is up and running again and we will do our best to further improve it. We are looking forward for your feedback and for your mathematical creations. And here we give you the link to one of the main “causes” for high traffic today: an article in spiegel.de on our platform. Thanks for the article (next time we are prepared!).
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Feb. 24, 2026
Feb. 9, 2025
Curious about how machine learning works and how to teach it?
IMAGINARY created a free and open-source online course for (prospective) teachers. It introduces two key topics of AI in a playful way: artificial neural networks and reinforcement learning.
A special...Read more
Jan. 30, 2024
IMAGINARY is part of the EU-funded project AI Exhibits. Together with partners across Europe, we develop hands-on exhibits that bring core concepts of artificial intelligence (AI) to life for teachers and secondary school students.
Jul. 6, 2023
MaRDI is a Germany-wide initiative to address challenges in mathematical research. It is aimed mainly at mathematicians to change how we do mathematics using FAIR (Findable, Accessible, Interoperable, and Reusable) research data. This way, it fits very well with our own open-source philosophy.
IMAGINARY actively participates in this initiative by assisting in communicating and...Read more
Mar. 31, 2023
March 14 is already known as Pi Day and is celebrated in many countries worldwide. It is named after the important number π, the ratio between the circumference and diameter of a circle, and approximately equal to 3.14. The International Day of Mathematics (IDM) celebration expands Pi Day to include the whole spectrum of mathematics. Mathematical language and reasoning are accessible to everyone. This year, the...Read more