IMAGINARY is your place for open and interactive mathematics. You can explore great programs, enjoy beautiful picture galleries and create hands-on math exhibits. Share your own ideas and modules. Stage your own exhibitions.

Inform yourself about the different exhibitions in the explore section. Here you will also find all related content for download. 
The interact section is the place to share your ideas: Upload your own galleries or programs, see what others are contributing and get in touch with the community
The think section provides interesting background material on different mathematical topics – for beginners and experts.


Jan. 17, 2014

Today we inaugurate the German version of the IMAGINARY platform. You can now switch to “deutsch” using the language selector on top of the page or open the German version of IMAGINARY directly through: www.

We are very happy to announce this new language (after English and...Read more

Dec. 20, 2013

The IMAGINARY team wishes you merry christmas and a happy new year!

We prepared a christmas card for you (in English, Spanish, German, French and Catalan for now) to download and forward. It was made with our program SURFER, which visualizes algebraic surfaces in real time. If you help us translate the card into other languages we...Read more

Dec. 5, 2013

Just in time for Christmas, IMAGINARY is proud to present our latest product, the IMAGINARY-Entdeckerbox – a box that contains a fine selection of all things IMAGINARY (in German). It is a mix of both physical and electronic materials – 3D sculptures, posters, craft supplies, a Live-DVD with a cocktail of software and...Read more

Nov. 15, 2013

For the first time, “IMAGINARY - through the eyes of mathematics” will be shown in Norway.The exhibition is organized by the NTNU University Museum in collaboration with The Norwegian Academy of Science and Letters through the board of Abel Prize and other partners. The exhibition features new...Read more

Oct. 31, 2013

The “Medienpreis Mathematik 2013” by the Deutsche Mathematiker Vereinigung (DMV) goes to Gert-Martin Greuel and Andreas Matt for their work on the project IMAGINARY. The prize is awarded for outstanding contributions to the communication and popularization of mathematics. The award comes with 4000 Euro prize money provided by the Walter de Gruyter Stiftung in Berlin.

The jury...Read more



Nov. 5, 2014 to Nov. 7, 2014
African Institute for Mathematical Sciences - South Africa|6-7 Melrose Place|Muizenberg|Cape Town|7745|ZA
Sep. 18, 2014 to Sep. 20, 2014
Erlebnisland Mathematik Dresden|Technischen Sammlungen Dresden|Junghansstraße 1-3|Dresden|01277|DE
Aug. 13, 2014 to Aug. 21, 2014
COEX|159 Samseong 1(il)-dong|Gangnam-gu|Seoul|135-731|KR

Latest user blog entries

May. 14, 2013

Today I’ve seen the most frightening norm of my life, and it was not in a mathematical textbook… Villani is just telling about his time at the Institute of Advanced Studies.…Read more

May. 11, 2013

I rememberd another detail from the FAZ article about the book. When asked whether he thought about rejecting the Fields medal as Perelman did in 2008, Villani replied: “I am not genius enough” (or at least something similar). What did he mean by that?

I…Read more

May. 10, 2013

Andreas pointed out to me that the article in the Zeit is publicly available (in German only):


I…Read more

May. 9, 2013

I forgot to mention the book title! In German, it’s “Das lebendige Theorem”. In French, it is “Théorème vivant”, according to Wikipedia. I am not sure if there is an English translation yet. In any case, I will read the German translation.…Read more

May. 9, 2013

Last week, I read an article in the FAZ about the new book of Cédric Villani. It is written for a general public, even though it contains a lot of specific maths, and is a big success in France.

Unfortunately, the FAZ article is not…Read more