Someone interested by this subject could also enjoy watching the french film "Dimensions... une promenade mathématique" on spatial geometry: https://www.youtub

Someone interested by this subject could also enjoy watching the french film "Dimensions... une promenade mathématique" on spatial geometry: https://www.youtube.com/watch?v=6cpTEPT5i0A&list=PL3C690048E1531DC7 https://www.youtube.com/watch?v=6cpTEPT5i0A&list=PL3C690048E... (note: this is the first video of a playlist) https://www.dimensions-math.org/Dim_E.htm https://www.dimensions-math.org/Dim_E.htm https://en.wikipedia.org/wiki/Dimensions_(animation) https://en.wikipedia.org/wiki/Dimensions_(animation)