Here's the question you clicked on:
RaphaelFilgueiras
how many corners does a cube have in 4-D?How many 3-D faces?How many edges?A typical corner is (0,0,1,0),a typical edge goes to (0,1,0,0).
@estudier but how do i calculate it?
Ok, this is something I kinda learned in graph theory..
it's algebra question of strang book
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2 dots make a line, two lines make a plane, if you connect the corresponding edges of two planes, you get a 3D cube, and finally, if you connect the corresponding edges of two 3D cubes you get a 4d cube.
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that looks soo messy, but that's what a 4D cube should look like.
it has twice as many corners as a 3D cube
and uhm.. let me count the number of edges.. |dw:1348059232884:dw|
So it should have 32 edges
http://upload.wikimedia.org/wikipedia/commons/4/45/Dimension_levels.svg This is what I was trying to explain with my messy drawing
where the 12 come from?
thanks @bahrom7893
|dw:1348059530435:dw| and you're welcome