September 2014
Intermediate to advanced
336 pages
7h 53m
Japanese
Content preview from アンダースタンディング コンピュテーション ―単純な機械から不可能なプログラムまで
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7.8
ルール
110
247
図7-3
7.8
ルール
110
ルー ル110はまた別 のセルオートマトンで、1983年にスティーブン・ウルフラム（Stephen
Wolfram）によって提案されました。それぞれのセルは生きているか死んでいるかのどちらかになりま
す。これはコンウェイのライフゲームのセルと似ていますが、ルール110は、2次元のグリッドではな
く1次元の列状に配置されたセルを操作します。つまり、ライフゲームではセルの周りに8 つの隣接す
るセルがありましたが、ルール110には隣接するセルが2つ（すぐ右と左にあるセル）しかありません。
ルール110オートマトンの各ステップでは、自分の状態とその両隣りのセルの状態によって次のセル
の状態が決まります。ライフゲームの場合は規則がより一般的で、生きているもしくは死んでいるセル
の複数の配置に対して適用されましたが、ルール110オートマトンの場合には、それぞれの可能性に
ついて個別の規則を持っています。
248
7
章 至るところにある万能性
図7-4
死んでいるセルを数字の
0
、生きているセルを数字の
1
として扱い、これら
8
つの規則を適用
後にセルの値を読むと、
2
進数
01101110
が得られます。この
2
進数を
10
進数に変換すると
110
になります。これがこのセルオー ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.