Timeline for Tetrahedron splitting/subdivision
Current License: CC BY-SA 2.5
9 events
| when toggle format | what | by | license | comment | |
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| Jun 19, 2010 at 8:39 | history | edited | Anton Petrunin | CC BY-SA 2.5 |
edited body
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| Jun 19, 2010 at 2:30 | comment | added | Victor Protsak | The volume should involve cubes of $a_i$s. | |
| Jun 18, 2010 at 13:32 | comment | added | Gerald Edgar | And for the first answer, the dihedral angle of a cube is 90 degrees, which evenly divides 180 degrees. | |
| Jun 18, 2010 at 13:31 | history | edited | Gerald Edgar | CC BY-SA 2.5 |
English cleaned up
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| Jun 18, 2010 at 12:04 | comment | added | Anton Petrunin | The Dehn invariant of cube is $0$. | |
| Jun 18, 2010 at 12:03 | history | edited | Anton Petrunin | CC BY-SA 2.5 |
edited body
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| Jun 18, 2010 at 12:03 | comment | added | Wadim Zudilin | Anton, why does the first answer not work for cubes? Secondly, I am just curious whether subdivision of "1/3" of cube (halfs of three faces with one joint vertex) into equal congruent parts is possible. | |
| Jun 18, 2010 at 11:53 | history | edited | Anton Petrunin | CC BY-SA 2.5 |
added 94 characters in body; deleted 1 characters in body
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| Jun 18, 2010 at 11:46 | history | answered | Anton Petrunin | CC BY-SA 2.5 |