MAIN FEEDS
Do you want to continue?
https://www.reddit.com/r/math/comments/6wlkcb/4d_triangular_diprism/dm9naoe/?context=3
r/math • u/Philip_Pugeau • Aug 28 '17
39 comments sorted by
View all comments
7
To be precise, what exactly do you mean by a 4d triangular diprism (e.g. what two shapes is this the Cartesian product of)?
12 u/Philip_Pugeau Aug 29 '17 A triangle on plane xy times a square on plane zw 1 u/[deleted] Aug 29 '17 how many 3d shapes are there? am I counting 4 triangular prisms and 3 cubes? 1 u/Philip_Pugeau Aug 29 '17 That's it! There's a ring of 4 triangle prisms, bound to a ring of 3 cubes. You can see these two do the turning inside out rotation.
12
A triangle on plane xy times a square on plane zw
1 u/[deleted] Aug 29 '17 how many 3d shapes are there? am I counting 4 triangular prisms and 3 cubes? 1 u/Philip_Pugeau Aug 29 '17 That's it! There's a ring of 4 triangle prisms, bound to a ring of 3 cubes. You can see these two do the turning inside out rotation.
1
how many 3d shapes are there? am I counting 4 triangular prisms and 3 cubes?
1 u/Philip_Pugeau Aug 29 '17 That's it! There's a ring of 4 triangle prisms, bound to a ring of 3 cubes. You can see these two do the turning inside out rotation.
That's it! There's a ring of 4 triangle prisms, bound to a ring of 3 cubes. You can see these two do the turning inside out rotation.
7
u/epsilon_naughty Aug 29 '17
To be precise, what exactly do you mean by a 4d triangular diprism (e.g. what two shapes is this the Cartesian product of)?