Message #909

From: matthewsheerin <damienturtle@hotmail.co.uk>
Subject: Re: [MC4D] Guess what is it :)
Date: Thu, 17 Jun 2010 12:14:13 -0000

Wow, that looks crazy! I don’t fully understand the interface just now, but if you manage to release the program I will play around with it until I do. A quick table of calculations in Excel gives (please point out any errors, this was done quickly):

0C: 1 piece
1C: 14 pieces
2C: 84 pieces
3C: 280 pieces
4C: 560 pieces
5C: 672 pieces
6C: 448 pieces
7C: 128 pieces
visible pieces: 2186
moveable pieces: 2172
stickers: 10206

I have just one minor issue here (other than potentially feeling the need to solve it!). 3^3, 3^4, 3^5, 3^7 … ?
3 … 4 … 5 … 7 … huh?
Either my basic arithmatic is off here, or we have skipped 6D. Any particular reason for this? Then again, I like the number 7, so I probably shouldn’t complain too much.

Good luck implementing the rest of the interface, I look forward to seeing the finished product. Out of curiosity, will this be the only n^7, or will there be other sizes? Not that we particularly need any bigger ones!

Matt

— In 4D_Cubing@yahoogroups.com, "Andrey" <andreyastrelin@…> wrote:
>
> Yes, it’s 3^7 cube. What we see is 13 faces of one "slice" 3^4*1^3 - large faces look like 3^3*3^3 cube and small (3^3*3^2*1) are divided to 3*3 squares and attached to sides of 3^3 blocks. These "secondary" stickers are smaller than main ones.
> Now only visualization and twists are implemented (twists are two-click with a little complicated rules of selection of first sticker - it’s difficult to find 2C in this picture, so some other stickers can play the same role). Next I’m going to write cube rotations and undo/redo/load/save/scramble - and it will be time to give it to group :)
>
> Andrey
>