<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 21 Apr 2020 at 15:16, Karl Berry <<a href="mailto:karl@freefriends.org">karl@freefriends.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi again Hu,<br>
<br>
Section 107 of "METAFONT: The Program" contains the pseudo-Pascal<br>
fragment "((2^29*p+q) div (2*q)" which has an extra left<br>
parenthesis. Is this a typo or a wabi-sabi?<br>
<br>
It's a bug, but it was already fixed in 2002 (errata.tex, line 977),<br>
and the current printing of volume D doesn't contain it.<br>
<br>
(Sorry if it's already been reported.)<br>
<br>
Please check the errata files if you can. I know they are not the<br>
easiest thing to search through, but they're what we've got ...<br>
<a href="https://ctan.org/pkg/knuth-errata" rel="noreferrer" target="_blank">https://ctan.org/pkg/knuth-errata</a><br>
<br>
In any case, thanks for the report. --best, karl.<br></blockquote><div><br></div><div>For what it's worth -- Knuth's webpage at <a href="https://cs.stanford.edu/~knuth/abcde.html">https://cs.stanford.edu/~knuth/abcde.html</a> links to a PDF of errata since 2001, in which this one is mentioned: <a href="https://cs.stanford.edu/~knuth/abcde-errata.pdf#page=13">https://cs.stanford.edu/~knuth/abcde-errata.pdf#page=13</a> (see under "page D42").</div><div>But the PDF file shown by `texdoc mf` (for me /usr/local/texlive/2020/texmf-dist/doc/generic/knuth/mf/mf.pdf) and mf.web still seem to contain the typo -- probably should be fixed there as well?</div></div></div>