内積がゼロになるように組み立てる。これで任意の2列にすべての組み合わせが出現。不思議。

数学

yojik のブックマーク 2006/05/23 18:02

<blockquote class="hatena-bookmark-comment"><a class="comment-info" href="https://akarinohon.com/text/taketori.cgi/https://b.hatena.ne.jp/entry/1986877/comment/yojik" data-user-id="yojik" data-entry-url="https://b.hatena.ne.jp/entry/www.ne.jp/asahi/qequick/study/SukosiKoudo04.htm" data-original-href="http://www.ne.jp/asahi/qequick/study/SukosiKoudo04.htm" data-entry-favicon="https://cdn-ak2.favicon.st-hatena.com/64?url=http%3A%2F%2Fwww.ne.jp%2Fasahi%2Fqequick%2Fstudy%2FSukosiKoudo04.htm" data-user-icon="/users/yojik/profile.png">少し高度なお話し［４］</a><ul class="comment-tag" style="list-style: none; margin: 0px;"><li style="float: left">[<a href="https://akarinohon.com/text/taketori.cgi/https://b.hatena.ne.jp/q/%25E6%2595%25B0%25E5%25AD%25A6">数学</a>]</li></ul><br><div class="tategaki" style="margin-top:10px;width:100%;">
<br style="display:none" /><span class="tktr-gyo" style="height:640px;margin:0 19px 180px 22px;font-size:19px;_width:19px;/width:19px;"><span class="char"">内</span><span class="char"">積</span><span class="char"">が</span><span class="char"">ゼ</span><span class="char"">ロ</span><span class="char"">に</span><span class="char"">な</span><span class="char"">る</span><span class="char"">よ</span><span class="char"">う</span><span class="char"">に</span><span class="char"">組</span><span class="char"">み</span><span class="char"">立</span><span class="char"">て</span><span class="char"">る</span><span class="ku-ten">。</span><span class="char"">こ</span><span class="char"">れ</span><span class="char"">で</span><span class="char"">任</span><span class="char"">意</span><span class="char"">の</span><span class="ltr">2</span><span class="char"">列</span><span class="char"">に</span><span class="char"">す</span><span class="char"">べ</span><span class="char"">て</span><span class="char"">の</span><span class="char"">組</span><span class="char"">み</span></span><span class="tktr-gyo" style="height:640px;margin:0 0 180px 22px;font-size:19px;_width:19px;/width:19px;"><span class="char"">合</span><span class="char"">わ</span><span class="char"">せ</span><span class="char"">が</span><span class="char"">出</span><span class="char"">現</span><span class="ku-ten">。</span><span class="char"">不</span><span class="char"">思</span><span class="char"">議</span><span class="ku-ten">。</span><br style="display:none" /></span>
<span style="display:block;clear:right"></span></div><a class="datetime" href="https://akarinohon.com/text/taketori.cgi/https://b.hatena.ne.jp/yojik/20060523#bookmark-1986877"><span class="datetime-body">2006/05/23 18:02</span></a></blockquote><script src="https://b.st-hatena.com/js/comment-widget.js" charset="utf-8" async></script>

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