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-% Bugs (sigh) in Computers \& Typesetting
-
-\input manmac
-\font\sltt=cmsltt10
-\font\niness=cmss9
-\font\ninessi=cmssi9
-\proofmodefalse
-\raggedbottom
-\output{\hsize=29pc \onepageout{\unvbox255\kern-\dimen@ \vfil}}
-
-\def\today{\number\day\
- \ifcase\month\or
- Jan\or Feb\or Mar\or Apr\or May\or Jun\or
- Jul\or Aug\or Sep\or Oct\or Nov\or Dec\fi
- \ \number\year}
-
-\def\cutpar{{\parfillskip=0pt\par}}
-
-\def\rhead{Bugs in {\tensl Computers \& Typesetting, 1990}}
-\def\bugonpage#1(#2) \par{\bigbreak\tenpoint
- \hrule width\hsize
- \line{\lower3.5pt\vbox to13pt{}Page #1\hfil(#2)}\hrule width\hsize
- \nobreak\medskip}
-\def\buginvol#1(#2) \par{\bigbreak\penalty-1000\tenpoint
- \hrule width\hsize
- \line{\lower3.5pt\vbox to13pt{}Volume #1\hfil(#2)}\hrule width\hsize
- \nobreak\medskip}
-\def\slMF{{\manual 89:;}\-{\manual <=>:}} % slant the logo
-\def\0{\raise.7ex\hbox{$\scriptstyle\#$}}
-\newcount\nn
-\newdimen\nsize \newdimen\msize \newdimen\ninept \ninept=9pt
-\newbox\eqbox \setbox\eqbox=\hbox{\kern2pt\eightrm=\kern2pt}
-
-\tenpoint
-\noindent This is a list of all corrections made to {\sl Computers \&
-Typesetting}, Volumes A,~C, and E\null, between 30 September 1989 (when
-the revisions for \TeX\ Version 3.0 and \MF\ Version 2.0 were made) and
-December 31, 1990.
-Corrections made to the softcover version of {\sl The \TeX book\/} are
-the same as corrections to Volume~A\null. Corrections to the softcover
-version of {\sl The \slMF\kern1ptbook\/} are the same as corrections
-to Volume~C\null. Some of the corrections below have already been made in
-reprintings of the books. Hundreds of changes, too many to list here,
-have been made to Volumes B~and~D because of the upgrades to \TeX\ and
-\MF\null. Readers who need up-to-date information on the \TeX\ and
-\MF\ programs should refer to the |WEB| source files until new
-printings of Volumes B~and~D are issued. \looseness=-1
-
- % volume A
-
-\bugonpage A99, line 4 from the bottom (2/22/90)
-
-\ninepoint\indent
-to be chosen because there was no feasible
-way to keep total demerits small.
-
-\bugonpage A124, lines 18--21 (9/5/90)
-
-\ninepoint\noindent
-Floating insertions can be accommodated
-as a special case of split insertions, by making each floating topinsert
-start with a small penalty, and by having
-zero as the associated |\floatingpenalty|; non-floating insertions
-like footnotes are accommodated by associating larger penalties with
-split insertions (see Appendix~B).
-
-\bugonpage A137, lines 2 and 3 from the bottom (11/9/90)
-
-{\eightssi
-\rightline{and you shouldn't even be reading this manual,}
-\rightline{which is undoubtedly all English to you.}
-}
-
-\bugonpage A141, line 15 from the bottom (10/18/90)
-
-\tenpoint\noindent
-Thus if you type `|$1\over2$|' (in a text) you get $1\over2$, namely style
-$S$ over style~$S'$;\cutpar
-
-\bugonpage A156, line 2 (11/18/89)
-
-\ninepoint
-Commands like |\mathchardef\alpha="010B| are used in
-Appendix~B to define\cutpar
-
-\bugonpage A165, lines 2--3 (8/13/90)
-
-\ninepoint
- Type the formula $\bf\bar x^{\rm T}Mx={\rm0}\iff x=0$,
-using as few keystrokes as possible.
-\ (The first `0' is roman, the second is bold. The superscript `T' is roman.)
-
-\bugonpage A171, lines 24--26 (3/13/90)
-
-\ninepoint\noindent
-formula produces a result exactly equivalent to
-`|\left(|\<subformula>|\right)|', when the \<subformula> doesn't end
-with Punct, except that the {delimiters} are forced to
-be of the |\big| size regardless of the height and depth of the subformula.
-
-\bugonpage A193, lines 16--18 (12/2/89)
-
-\ninepoint\noindent
-line if you insert
-`^|\noalign||{|^|\break||}|'
-after the |\cr| for that line. You can prohibit {\sl all\/} breaks
-in an |\eqalignno| if you set ^|\interdisplaylinepenalty||=10000|; or you
-can enclose the whole works in a ^|\vbox|:
-
-\bugonpage A233, bottom 9 lines, and top three on next page (12/2/89)
-
-\danger The |\+| macro in Appendix~B works
-by putting the \<text> for each column that's followed by~|&|
-into an hbox as follows:
-\begindisplay
-|\hbox to |\<column width>|{|\<text>|\hss}|
-\enddisplay
-The ^|\hss| means that the text is normally flush left, and that it can
-extend to the right of its box. Since |\hfill| is ``more infinite'' than
-|\hss| in its ability to stretch, it has the effect of right-justifying or
-centering as stated above. Note that |\hfill| doesn't shrink, but |\hss|
-does; if the text doesn't fit in its column, it will stick out at the right.
-You could cancel the shrinkability of |\hss| by adding ^|\hfilneg|; then
-an oversize text would produce an overfull box.
-You could also center some text by putting `|\hss|' before it and just
-`|&|' after it; in that case the text would be allowed to extend to the
-left and right of its column.
- The last column of a |\+|~line (i.e., the column entry that is
-followed by |\cr|) is treated differently: The
-\<text> is simply put into an hbox with its natural~width.\looseness=-1
-
-\bugonpage A254, line 5 from the bottom (10/5/89)
-
-\ninepoint\noindent
-|\vsize| hasn't changed, and if all insertions have been
-held in place, the same page break\cutpar
-
-\bugonpage A286, lines 30--32 (3/13/90)
-
-\ninepoint\noindent
-reading and expanding this \cstok{par}
-token, \TeX\ will see the \<vertical command> token again. \ (The current
-meaning of the control sequence ^|\par| will be used; \cstok{par} might no
-longer stand for \TeX's |\par| primitive.)
-
-\bugonpage A290, lines 12--13 (3/24/90)
-
-\ninepoint\noindent
-simply a single Ord atom without subscripts or superscripts,
-or an Acc whose nucleus is an Ord, the
-enclosing braces are effectively removed.
-
-\bugonpage A317, line 17 (5/17/90)
-
-\ninepoint
-|\pretolerance=9999 \tolerance=9999 \parindent=0pt|
-
-\bugonpage A321, lines 16--17 (8/13/90)
-
-\ninepoint\noindent
-\hbox to\parindent{\bf\hss18.6.\enspace}\ignorespaces
-|$\bf\bar x^{\rm T}Mx={\rm0}\iff x=0$|. \ (If you typed a space between
-|\rm| and~|0|, you wasted a keystroke; but don't feel guilty about it.)
-
-\bugonpage A340, nonblank line 11 (3/13/90)
-
-\tenpoint\noindent
-|\topglue 1in % This makes an inch of blank space (1in=2.54cm).|
-
-\bugonpage A342, line 6 (3/13/90)
-
-\tenpoint\noindent
-|\topglue| but not |\hglue|. It does not
-illustrate |\raggedright| setting of para-\cutpar
-
-\bugonpage A346, lines 20--21 (12/3/89)
-
-\ninepoint\noindent
-streams used by ^|\read| and ^|\write|, to math
-^{families} used by ^|\fam|, to sets of hyphenation rules used by
-^|\language|, and to insertions (which require
-^|\box|, ^|\count|, ^|\dimen|, and ^|\skip| registers all having the
-same number).
-
-\bugonpage A346, line 20 from the bottom (12/3/89)
-
-\ninepoint\noindent
-manent value. These macros use registers
-|\count10| through |\count20| to hold the\cutpar
-
-\bugonpage A346, lines 8--13 from the bottom (12/3/89)
-
-\ninepoint\noindent
-number was allocated. The inside story of how allocation is actually performed
-should be irrelevant when the allocation macros are used at a higher level;
-you mustn't assume that |plain.tex| really does allocation in any
-particular way.
-\beginlines
-|\count10=22 % this counter allocates \count registers 23, 24, 25, ...|
-\endgroup
-
-\bugonpage A347, lines 2--5 (12/3/89)
-
-\ninepoint{\parindent=0pt
-|\count19=0 % this counter allocates language codes 1, 2, 3, ...|\parbreak
-|\count20=255 % this counter allocates insertions 254, 253, 252, ...|\parbreak
-|\countdef\insc@unt=20 % nickname for the insertion counter|\parbreak
-|\countdef\allocationnumber=21 % the most recent allocation|\parbreak
-|\countdef|^|\m@ne||=22 \m@ne=-1 % a handy constant|\par}
-
-\bugonpage A347, new line after former line 17 (12/3/89)
-
-\ninepoint\noindent
-|\outer\def|^|\newlanguage||{\alloc@9\language\chardef\@cclvi}|
-
-\bugonpage A352, new line before line 6 from the bottom (3/13/90)
-
-\ninepoint\noindent
-|\def\topglue{\nointerlineskip \vglue-\topskip \vglue} % for top of page|
-
-\bugonpage A355, line 8 from the bottom (12/3/89)
-
-\ninepoint\noindent
-| \noindent{\bf#1.\enspace}{\sl#2\par}%|
-
-\bugonpage A363, lines 8--9 from the bottom (12/8/89)
-
-{\ninepoint\parindent=0pt
-| \if@mid \dimen@=\ht0 \advance\dimen@ by\dp\z@ |%
- |\advance\dimen@ by12\p@|\parbreak%
-| \advance\dimen@ by\pagetotal \advance\dimen@ by-\pageshrink|
-\par}
-
-\bugonpage A375, line 27 (10/30/89)
-
-\ninepoint\noindent
-depending on whether or not |\t|~contains
-an asterisk. \ (Do you see why?) \ And here's\cutpar
-
-\bugonpage A393, lines 3--5 from the bottom (12/3/89)
-
-\ninepoint
-|\hskip-.17em plus-3em minus.11em|\par
-|\vadjust{}\penalty10000|\par
-|\leaders\copy\dbox\hskip3.3\wd\dbox plus1fil minus.3\wd\dbox|
-
-\bugonpage A444, line 4 (3/13/90)
-
-\ninepoint\noindent
-Shift box~$x$ down by ${1\over2}\bigl(h(x)-d(x)\bigr)
--a$, where $a=\sigma_{22}$, so that the operator character\cutpar
-
-\bugonpage A450, line 8 (12/3/89)
-
-\def\\#1{$_{\kern\scriptspace#1}$}
-\ninepoint\indent
-{\qquad\tt\\0h\\0e\\0n\\5a\\0t\\0 \\1n\\0a\\0 \\0n\\2a\\0t\\0
- \\1t\\0i\\0o\\0 \\2i\\0o\\0 \\0o\\2n\\0}
-
-\bugonpage A450, line 14 (12/3/89)
-
-\ninepoint
-{\tt.\\0h\\0y$_3$p\\0h\\0e\\2n\\5a\\4t\\2i\\0o\\2n\\0.}
-
-\bugonpage A450, lines 19 and 20 (12/3/89)
-
-\ninepoint\vskip-10pt
-\begindisplay
-\tt\\0o\\2n\\0
-\\0o\\0n\\1c\\0
-\\1c\\0a\\0
-\\1n\\0a\\0
-\\0n\\2a\\0t\\0
-\\1t\\0i\\0o\\0
-\\2i\\0o\\0
-\\0o\\2n\\0
-\enddisplay
-and this yields `{\tt\\0c\\0o\\2n\\1c\\0a\\0t\\0e\\1n\\2a\\1t\\2i\\0o\\2n\\0}',
-i.e., `|con-cate-na-tion|'.
-
-\bugonpage A455, last lines before the quotes (11/30/89)
-
-\ninepoint\noindent
-sit yourself (even in restricted horizontal mode) by saying
-^|\setlanguage|\<number>;\break
- this changes the current language but it
-does not change |\language|. Each what-\break
-sit records the current
-|\lefthyphenmin| and |\righthyphenmin|.
-
-\bugonpage A467, right column (12/3/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\hfilneg|, 72, 100, 233, 283, 285, 290, 397.
-
-\bugonpage A468, right column (12/2/89)
-
-\eightpoint
-|\interdisplaylinepenalty|, {\it193}, 349, 362.
-
-\bugonpage A469, left column (12/3/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\language| (hyphenation method), 273, 346, $\underline{455}$.
-
-\bugonpage A469, right column (10/30/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\lefthyphenmin|, 273, {\it364}, $\underline{454}$, 455.
-
-\bugonpage A472, left column (12/3/89)
-
-\eightpoint
-|\newlanguage|, 346, $\underline{347}$.
-
-\bugonpage A476, left column (10/30/89)
-
-\eightpoint\indent\hbox to0pt{\hss\lower1pt\hbox{*}}%
-|\righthyphenmin|, 273, {\it364}, $\underline{454}$, 455.
-
-\bugonpage A479, new entry (3/13/90)
-
-\eightpoint
-|\topglue|, {\it340}, $\underline{352}$.
-
-\bugonpage A480, right column (3/13/90)
-
-\eightpoint
-|\vglue|, $\underline{352}$, {\it408}.
-
-\bugonpage A483, the Providence lines (10/8/89)
-
-\noindent[Change the first one to
-\begintt
-Providence RI 02940\kern.05em-9506, USA.
-\endtt
-Then the second one will be
-\begindisplay
-Providence RI 02940\kern.05em-9506, USA.
-\enddisplay
-The second line will also appear on page C361.]
-
- % volume B
-\hsize=35pc
-\def\\#1{\hbox{\it#1\/\kern.05em}} % italic type for identifiers
-\def\to{\mathrel{.\,.}} % double dot, used only in math mode
-
-
- % volume C
-\hsize=29pc
-\def\\#1{\hbox{\it#1\/\kern.05em}} % italic type for identifiers
-
-\bugonpage C11, replacement for second quotation at bottom of page (9/27/90)
-
-\begingroup
- \eightpoint \let\tt=\ninett
- \baselineskip 10pt
- \parfillskip \z@
- \interlinepenalty 10000
- \leftskip \z@ plus 40pc minus \parindent
- \let\rm=\eightss \let\sl=\eightssi
- \everypar{\sl}
- \def\par{\ifhmode\/\endgraf\fi}\obeylines
-To anyone who has lived in a modern American city (except Boston)
-at least one of the underlying ideas of ^{Descartes}' analytic geometry
-will seem ridiculously evident. Yet, as remarked,
-it took mathematicians all of two thousand years
-to arrive at this simple thing.
-\author ERIC TEMPLE ^{BELL}, {\sl Mathematics: Queen and Servant of %
- Science\/} (1951) % p123
-
-\endgroup
-
-\bugonpage C220, top line (3/13/90)
-
-\ninepoint\noindent
-modes you get into by hitting
-`|S|', `|R|', or `|Q|', respectively, in response to error messages\cutpar
-
-\bugonpage C252, line 16 (3/13/90)
-
-\ninepoint\indent
-| for i:=1 upto n_windows: display blankpicture inwindow i; endfor|
-
-\bugonpage C262, lines 19--21 (11/9/90)
-
-\ninepoint\noindent
-for commonly occurring idioms.
-For example, `{\bf stop} |"hello"|' displays `|hello|' on the terminal and waits
-until \<return> is typed.
-\beginlines
-|def |^|upto|| = step 1 until enddef; def |^|downto|| = step -1 until enddef;|
-\endgroup
-
-\bugonpage C264, lines 4--6 from the bottom (3/24/90)
-
-\ninepoint\noindent
-|vardef |^|counterclockwise|| primary c =|\par\noindent
-| if turningcheck>0:|\par\noindent
-| interim |^|autorounding||:=0;|\par\noindent
-| if |^|turningnumber|| c <= 0: reverse fi fi c enddef;|
-
-\bugonpage C306, line 6 (3/13/90)
-
-\ninepoint\noindent
-| ligtable "'": "'" =: oct"042", % close quotes|
-
-\bugonpage C309, second line from bottom (11/18/89)
-
-\ninepoint\noindent
-| define_whole_vertical_blacker_pixels(vair,slab,| $\cdots$ |);|
-
-\bugonpage C315, line 9 from the bottom (1/2/90)
-
-\ninepoint\noindent
-units of printer's points):
-
-\bugonpage C329, line 25 (12/29/90)
-
-\ninepoint\noindent
-which can be used to specify a nonstandard file area
-or directory name for the gray\cutpar
-
-\bugonpage C337, line 4 from the bottom (1/7/90)
-
-\ninepoint\noindent
-|\def\startfont{\font\testfont=\fontname \spaceskip=0pt|
-
-\bugonpage C347, left column (9/27/90)
-
-\eightpoint\noindent
-Bell, Eric Temple, 11.
-
-\bugonpage C349, left column (9/27/90)
-
-\eightpoint\noindent
-Descartes, Ren\'e, 6, 11, 19.
-
-\bugonpage C356, right column (9/27/90)
-
-\eightpoint\noindent
-[remove the entry for Rex Stout.]
-
-\bugonpage C358, right column (9/27/90)
-
-\eightpoint\noindent
-[remove the entry for Nero Wolfe.]
-
- % Volume D
-\hsize=35pc
-\def\\#1{\hbox{\it#1\/\kern.05em}} % italic type for identifiers
-\def\to{\mathrel{.\,.}} % double dot, used only in math mode
-
- % volume E
-\hsize=29pc
-\def\dashto{\mathrel{\hbox{-\kern-.05em}\mkern3.9mu\hbox{-\kern-.05em}}}
-
-\bugonpage Exiii, replacement for last four lines (4/30/90)
-
-\textindent{\bull}``AMS Euler---A new typeface for mathematics''
- by Donald~E. Knuth
-and Hermann Zapf, {\sl Scholarly Publishing\/ \bf21} (1989), 131--157.
-\ {\it The story of a design project that helps bridge the gulf between
-mathematics and art.}
-
-\smallskip
-\textindent{\bull}``Meta-Marks:
- Preliminary studies for a Pandora's Box of shapes''
-by Neenie Billawala, Stanford Computer Science report 1259 (Stanford,
-California, July 1989), 132~pp.
-\ {\it Lavishly illus\-trated studies in parameter variation,
-leading to the design of a new typeface called Pandora.}
-
-
-
-\bugonpage E325, line 13 (3/13/90)
-
-\ninepoint\noindent
-{\bf if} \\{serifs}: $x_{3r}=\max(x_{1r},{\rm hround}(x_1+.5\\{dot\_diam}
- -.2\\{jut})-.5\\{tiny})$\par\noindent
-{\bf else}: $x_3=x_1-.5$ {\bf fi};
-
-\bugonpage E483, line 4 (3/13/90)
-
-\ninepoint
-\rightline{\% Character codes \oct{000}--\oct{100} and \oct{133}--\oct{177}
- are generated.}
-
-\bugonpage E544, line 5 (3/13/90)
-
-\ninepoint\noindent
-\hskip 3em\vdots\hskip2em\raise2pt\hbox{(the rest of the
- program for `$\gamma$' in |greekl| comes here)}
-
-\bugonpage E557, line 9 (3/13/90)
-
-\ninepoint
-\rightline{\sl`Nevermore---Ah nevermore.'\thinspace''}
-
-\bugonpage E558, line 21 (3/13/90)
-
-\eightpoint\noindent
-|Clasp a rare and radiant maiden whom the angels name Lenore."|
-
-\bugonpage E570, lines 27--28 look better with proper skewchars (3/13/90)
-
-\begingroup
-\tenpoint\bf
-\textfont0=\tenbf \scriptfont0=\sevenbf
-\font\boldi=cmmib10 \font\boldsy=cmbsy10
-\skewchar\boldi='177 \skewchar\boldsy='60
-\textfont1=\boldi
-\textfont2=\boldsy
-\noindent Here's some bold 10-point math:
-${\hat A}^\Gamma_0
-+{\check B}^\Delta_1
--{\tilde C}^\Theta_2
-\times{\acute D}^\Lambda_3
-/{\grave E}^\Xi_4
-\oplus{\dot F}^\Pi_5
-\ominus{\ddot G}^\Sigma_6
-\otimes{\breve H}^\Phi_7
-\oslash{\bar I}^\Psi_8
-\odot{\vec J}^{\,\Omega}_9$.
-\endgroup
-
- \bye
-