我搜索了综合 Latex 符号列表,但找不到下面的符号。它位于 Knuth 的趣味游戏论文选集,这可能意味着它是与书中其他谜题相伴的谜题或谜团(第一版第 741 页;第二版第 742 页)。我并不一定想让自己或他人的谜题被毁掉,但我已经从头到尾阅读了这本书,并在互联网上搜索了所有地方,但我真的找不到任何线索来找到有关它的更多信息。它在索引中被列为对自身的引用。有什么提示吗?
编辑:索引可以在这里下载:http://web.stanford.edu/group/cslipublications/cslipublications/site/9781575865843-knuth-fg-index.pdf
在序言(第 xiv 页)中,Knuth 写道:
最后,让我以热烈感谢 KTG 协会及其虚构的领导者来结束这篇序言,他们的存在就像一个谜,只有仔细思考本书后面的索引才能解开。能够解开这个奇怪谜题的读者会发现,我古怪的缪斯根本无法抵挡住诱惑,想要通过添加一些象征性的“书挡”来结束这八本书系列的最后一篇序言,以便让乐趣和游戏持续更长时间。
答案1
这是苏斯博士为他的儿童读物发明的字母超越斑马!作者列举了几个字母来扩展已知的 26 个英语字母表。
在书中,这封信没有被赋予名字,但有些人称它为 ABCDEFGHIJKLMNOPQRSTUVWXYZ。参见 en.wikipedia.org/wiki/On_Beyond_Zebra!以及此页面上已注册的 Unicode 扩展的链接,该扩展具有上述名称。
有多种方法可以获取符号,但请注意,如果您想将符号视为字母,其形状必须与其他字形相匹配;例如,您知道书法 A 看起来与无衬线 A 不同。否则,符号仍为符号。
1) 找到字体设计者为其创建字母的 Unicode 字体,并使用支持 Unicode 的 TeX 引擎。(我不知道是否存在这样的字体。)
2)将符号保留为图像,并将其作为图形放置在文本中。(我假设该符号在文本中不常用。)
3) 使用 Metafont 等工具自己创建符号。(我认为 Knuth 已经这样做了,因为上面的图片和扫描图像从书中;例如,查看右端镜像“B”的顶部。)
4) 尝试近似地表示维基百科页面列表中的符号;那里的符号由现有字母组成。(读者必须能够识别字母;字母没有如上所述的预定义形状。)
这封信与序言最后一段中提到的谜题无关。Knuth 并没有说索引的最后一条给出了提示;你必须查找不同的条目。而且你需要这本书才能明白它的意思;上面的文字没有帮助。(而且这个谜题有一个伙伴,你必须在没有任何提示的情况下找到它。)
答案2
我在尝试寻找《On Beyond Zebra》中角色的命令时偶然发现了这篇文章。我认为最好的办法可能是使用类似这样的程序来追踪书籍扫描件
将其转换为 TikZ 代码。我尝试了第一个字母 Yuzz,但无法填充空格。结果如下。
\documentclass{standalone}
\usepackage{tikz}
\newcommand{\yuzz}{\mathnormal{\raisebox{-0.5em}{\resizebox{0.1in}{!}{\begin{tikzpicture}[yscale=-1,xscale=1]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (270,105) .. controls (294.5,123) and (286.5,191) .. (272.5,203) ;
%Curve Lines [id:da5912940658083148]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (288,93) .. controls (292.5,103) and (305.5,128) .. (298.5,140) ;
%Curve Lines [id:da962783516469809]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (343.5,67) .. controls (338.5,66) and (306.5,111) .. (298.5,140) ;
%Curve Lines [id:da9455560810742731]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (363.5,87) .. controls (364.5,78) and (302.5,121) .. (297.5,181) ;
%Curve Lines [id:da9543438929259616]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (376.5,164) .. controls (363.5,155) and (326.5,166) .. (297.5,181) ;
%Curve Lines [id:da38913034116276735]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (331.5,178) .. controls (305.5,184) and (285.5,203) .. (272.5,203) ;
%Curve Lines [id:da5548597470439434]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (331.5,178) .. controls (321.5,188) and (305.5,193) .. (287.5,215) ;
%Curve Lines [id:da9503704379735175]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (329.5,208) .. controls (306.5,207) and (292.5,216) .. (287.5,215) ;
%Curve Lines [id:da7592397467272988]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (362.5,200) .. controls (348.5,194) and (340.5,196) .. (333.5,195) ;
%Curve Lines [id:da6891911105228086]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (376.5,164) .. controls (356.5,168) and (341.5,187) .. (333.5,195) ;
%Straight Lines [id:da2745537604556808]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (316.5,218) -- (329.5,208) ;
%Curve Lines [id:da7267183253637328]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (362.5,200) .. controls (352.5,199) and (340.5,215) .. (335.5,214) ;
%Straight Lines [id:da8445388195170114]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (338.5,220) -- (316.5,218) ;
%Straight Lines [id:da3681048289541565]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (346.5,216) -- (335.5,214) ;
%Straight Lines [id:da8265563588802936]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (338.67,224) -- (338.5,220) ;
%Straight Lines [id:da549974686747153]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (346,224) -- (338.67,224) ;
%Straight Lines [id:da8785505379722095]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (346.67,227.33) -- (346,224) ;
%Straight Lines [id:da6525278922944201]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (354,227.33) -- (346.67,227.33) ;
%Straight Lines [id:da03498375717039004]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (370,240.67) -- (354,227.33) ;
%Straight Lines [id:da3670301043251557]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (373.33,238.67) -- (370,240.67) ;
%Straight Lines [id:da7530313797340065]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (358,224) -- (373.33,238.67) ;
%Straight Lines [id:da2941648655176705]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (353.33,222.67) -- (358,224) ;
%Straight Lines [id:da10706554365985477]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (353.33,222.67) -- (346.5,216) ;
%Straight Lines [id:da7592775424005729]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (288,93) -- (270,105) ;
%Straight Lines [id:da885768770904793]
\draw [color={rgb, 255:red, 0; green, 0; blue, 0 } ,draw opacity=1 ][line width=3] (363.5,87) -- (343.5,67) ;
\end{tikzpicture}}}}}
\begin{document}
$\yuzz$
\end{document}