Troy to math@lemmy.world · 1 year agoHow a Doodler's Problem Sparked a Controversy in Math | Scientific Americanwww.scientificamerican.comexternal-linkmessage-square6fedilinkarrow-up124arrow-down10file-text
arrow-up124arrow-down1external-linkHow a Doodler's Problem Sparked a Controversy in Math | Scientific Americanwww.scientificamerican.comTroy to math@lemmy.world · 1 year agomessage-square6fedilinkfile-text
minus-squareperson594@feddit.delinkfedilinkarrow-up3·1 year agoOn a torus, you can have up to seven mutually adjacent regions. See https://upload.wikimedia.org/wikipedia/commons/3/37/Projection_color_torus.png
On a torus, you can have up to seven mutually adjacent regions. See https://upload.wikimedia.org/wikipedia/commons/3/37/Projection_color_torus.png
Oh, very nice!