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This media was produced by the Matemateca (IME USP) and was licensed as Creative Commons BY-SA 4.0. The Matemateca is part of the Institute of Mathematics and Statistics, University of São Paulo,
Matemateca IME-USP asks to be cited as shown below. If the photographer/artist name is mentioned, please, cite it after the museum's name. If not, just provide the reference to the museum.
|This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.|
|Attribution: Matemateca (IME USP) / name of the photographer when stated|