\@doanWnote {1}
macro:->\quad
\textbf
{RUNOFF}\quad
{}J.\,H.
Saltzer,
TYPSET
and
RUNOFF,
Memorandum
editor
and
type-out
commands,
MIT
Project
MAC,
MAC-M-193,
November
6,
1964,
\url
{web.mit.edu/Saltzer/www/publications/CC-244.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {2}
macro:->\quad
\textbf
{close
brace}\quad
{}One
use
of
braces
in
\TeX
\
is
to
indicate
scope
in
the
programming
language
sense.\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{TAOCP}\quad
{}Knuth's
TAOCP
website,
\url
{cs.stanford.edu/~uno/taocp.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{Monotype}\quad
{}Fred
Williams,
The
Monotype
Story,
spring
1984,
\url
{tinyurl.com/williams-monotype}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``genesis
of
\TeX
''}\quad
{}The
Errors
of
\TeX
,
chapter
10
of
Knuth's
\textit
{Literate
Programming}
CSLI
Publications,
Stanford,
CA,
1992,
\url
{tug.org/texlive/devsrc/Master/texmf-dist/doc/generic/knuth}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``breaking
paragraphs
into
lines''}\quad
{}\label
{fn:plassinterview}TUG
Interview
Corner,
interview
of
Michael
Plass,
2009-12-20,
\url
{tug.org/interviews/plass.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``May
13
memo
sketched
the
system's
design''}\quad
{}\texttt
{TEXDR.AFT},
Chapter~24
of
\textit
{Digital
Typography}
(see
note
above);
or
click
on
``[1,DEK]''
at
\url
{saildart.org/DEK}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``prototype
implementation
of
\TeX
''}\quad
{}TUG
Interview
Corner,
interview
of
Franklin
Liang,
2009-12-20,
\url
{tug.org/interviews/liang.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``Plass
remembers''}\quad
{}Plass
interview
(see
note
above).\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``Knuth's
work
with
\TeX
''}\quad
{}TEX
originally
meant
``technical
text'':
Donald
E.
Knuth,
\textit
{TAU
EPSILON
CHI:
A
System
for
Technical
Text},
Stanford
Computer
Science
Department
Report
No.\
STAN-CS-78-675,
September
1978.
Later
TEX
became
Tau
Epsilon
Chi
with
the
logo
\TeX
,
as
\TeX
\
is
an
abbreviation
of
$\tau
\epsilon
\chi
$,
Greek
for
both
``art''
and
``craft''.\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``forty-year
story''}\quad
{}Steve
Ditlea,
Rewriting
the
Bible
in
0's
and
1's,
\textit
{MIT
Technology
Review},
September~1,
1999,
\url
{tinyurl.com/bible0s1s}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``invented
for
the
job''}\quad
{}Chapter
7,
How
to
Read
a
{\tt
WEB},
of
Knuth's
\textit
{Literate
Programming},
CSLI
Publications,
Stanford,
CA,
1992.\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``With
{\tt
WEB},
Knuth
combined
capabilities''}\quad
{}For
more
on
{\tt
WEB},
see,
for
example,
a
description
by
Knuth
at
\url
{literateprogramming.com/knuthweb.pdf};
and
a
significant-sized
program
in
{\tt
WEB},
also
by
Knuth,
but
not
related
to
\TeX
,
at
\url
{literateprogramming.com/adventure.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {4}
macro:->\quad
\textbf
{``Liang's
thesis
research
was
completed''}\quad
{}Franklin
Mark
Liang,
Word
Hy-phen-a-tion
by
Com-put-er,
Stanford
University
PhD
thesis,
August
1983,
\url
{tug.org/docs/liang/}\vspace
{4pt}
\@endanWnote
\@doanWnote {5}
macro:->\quad
\textbf
{``\TeX
's
automatic
line-breaking
algorithm''}\quad
{}This
algorithm
is
described
in
a
classic
paper
by
Plass
and
Knuth:
Donald
E.
Knuth
and
Michael
F.
Plass,
Breaking
Paragraphs
into
Lines.
The
paper
was
originally
published
in
1981
in
\textit
{Software---Practice
and
Experience}.
It
is
reprinted
in
Knuth's
\textit
{Digital
Typography},
pp.~67--155.
It
also
was
part
of
Plass's
1981
PhD
thesis:
Michael
F.
Plass,
Optimal
Pagination
Techniques
for
Automatic
Typesetting
Systems,
Stanford
University
PhD
thesis,
June
1981,
\url
{tug.org/docs/plass/plass-thesis.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {5}
macro:->\quad
\textbf
{``reported
to
the
\TeX
\
community''}\quad
{}\Fuchsurl
\vspace
{4pt}
\@endanWnote
\@doanWnote {5}
macro:->\quad
\textbf
{Zabala's
Pascal
implementation}\quad
{}\Zabalaurl
\vspace
{4pt}
\@endanWnote
\@doanWnote {5}
macro:->\quad
\textbf
{``people
at
Stanford
who
helped
Knuth''}\quad
{}To
the
above
list
of
students
who
helped
Knuth,
one
can
also
add
faculty
member
emeritus
Arthur
Samuel
who
also
found
ways
to
support
Knuth
in
his
\TeX
\
efforts.
For
instance,
see
his
introduction
to
\TeX
:
\url
{i.stanford.edu/pub/cstr/reports/cs/tr/83/985/CS-TR-83-985.pdf};
for
\textit
{TUGboat}
writings
by
Samuel,
see
\Samuelwritings
\vspace
{4pt}
\@endanWnote
\@doanWnote {5}
macro:->\quad
\textbf
{``May
2017
desktop
publishing
pioneers
meeting''}\quad
{}********We
need
to
include
the
URL
of
the
transcript
of
the
video
when
the
transcript
is
available.*****
Last
DTP
meeting
video,
minutes
26
to
38.\vspace
{4pt}
\@endanWnote
\@doanWnote {5}
macro:->\quad
\textbf
{System
Development
Foundation}\quad
{}\url
{oac.cdlib.org/findaid/ark:/13030/tf429003m4/}\vspace
{4pt}
\@endanWnote
\@doanWnote {6}
macro:->\quad
\textbf
{``deflect
requires
for
new
features''}\quad
{}Email
exchange
with
Guy
Steele,
June
2017.\vspace
{4pt}
\@endanWnote
\@doanWnote {6}
macro:->\quad
\textbf
{.SAI
files}\quad
{}Click
on
``[TEX,DEK]''
at
\url
{saildart.org/DEK}\vspace
{4pt}
\@endanWnote
\@doanWnote {6}
macro:->\quad
\textbf
{``Guy
Steele\ldots
{}began
porting
\TeX
''}\quad
{}\label
{fn-steeleemails}Email
exchange
with
Guy
Steele,
June
2017.\vspace
{4pt}
\@endanWnote
\@doanWnote {6}
macro:->\quad
\textbf
{Steele
port
to
MIT}\quad
{}In
addition
to
our
2017
email
exchange
(see
note
above),
Guy
Steele
provided
us
with
copies
of
his
SAIL
emails
from
July
28
to
September
8,
1978,
and
his
MIT
emails
from
September
2
to
October
28.\vspace
{4pt}
\@endanWnote
\@doanWnote {6}
macro:->\quad
\textbf
{Ports
to
PDP-10s}\quad
{}Other
ports
of
\TeX
\
to
PDP-10s
are
noted
in
Nelson
H.
F.
Beebe,
The
design
of
\TeX
\
and
Metafont:
A
retrospective,
presented
at
the
Practical
\TeX
\
conference
of
2005,
\url
{tug.org/tugboat/tb26-1/beebe.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {7}
macro:->\quad
\textbf
{``TEXDVI,
being
an
optional
replacement
for''}\quad
{}TUG
Interview
Corner,
Interview
of
David
Fuchs,
\url
{tug.org/interviews/fuchs.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {7}
macro:->\quad
\textbf
{``could
be
written
using
DVI
output''}\quad
{}David
Fuchs,
The
Format
of
\TeX
's
DVI
Files,
\textit
{TUGboat},
vol.~1,
no.~1,
pp.~17--19,
\url
{tug.org/TUGboat/tb01-1/tb01fuchs.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {7}
macro:->\quad
\textbf
{``regardless
of
form
of
floating
point
arithmetic''}\quad
{}Nelson
H.\,F.
Beebe,
Extending
\TeX
\
and
Metafont
with
floating-point
arithmetic,
\textit
{TUGboat},
vol.~28
(2007),
no.~3,
pp.~319--328,
\url
{tug.org/TUGboat/tb28-3/tb90beebe.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {7}
macro:->\quad
\textbf
{``based
on
user
experience
with
\TeX
''}\quad
{}Metafont
went
straight
from
SAIL
to
{\tt
WEB}.\vspace
{4pt}
\@endanWnote
\@doanWnote {7}
macro:->\quad
\textbf
{``Rather
than
talk
about''}\quad
{}Richard
Palais
email,
2017-11-30.\vspace
{4pt}
\@endanWnote
\@doanWnote {7}
macro:->\quad
\textbf
{``sketched
his
work
with
\TeX
''}\quad
{}\url
{webofstories.com/play/donald.knuth/61}\vspace
{4pt}
\@endanWnote
\@doanWnote {8}
macro:->\quad
\textbf
{Joy
of
\TeX
}\quad
{}Michael
Spivak,
\textit
{The
Joy
of
\TeX
},
American
Mathematical
Society,
Providence,
RI,
1986.\vspace
{4pt}
\@endanWnote
\@doanWnote {8}
macro:->\quad
\textbf
{Michael
Spivak}\quad
{}In
addition
to
his
AMS\TeX
\
work,
Spivak
early
on
also
designed
the
MathTime
professional
fonts,
based
on
and
for
use
with
the
Times
font
or
to
replace
the
Computer
Modern
math
fonts;
these
were
made
available
via
the
PC\TeX
\
company.\vspace
{4pt}
\@endanWnote
\@doanWnote {8}
macro:->\quad
\textbf
{``Gordon
Bell
remembers''}\quad
{}Email
of
2017-08-03.\vspace
{4pt}
\@endanWnote
\@doanWnote {8}
macro:->\quad
\textbf
{``AMS
commissioned
Hermann
Zapf''}\quad
{}Zapf
mentions
this
in
his
own
life
story:\\\url
{linotype.com/1494/the-lifestory-of-hermann-zapf.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {8}
macro:->\quad
\textbf
{``goal
of
being
more
like
how
mathematicians
handwrite''}\quad
{}\textit
{Digital
Typography}
(see
note
above),
chapter
17---a
reprint
of
a
paper
co-authored
by
Knuth
and
Zapf.\vspace
{4pt}
\@endanWnote
\@doanWnote {8}
macro:->\quad
\textbf
{``first
meeting
of
the
\TeX
\
Users
Group''}\quad
{}Palais
interview,
\url
{tug.org/interviews/palais.html};
Beeton
interview,
\url
{tug.org/interviews/beeton.html};
Fuchs
interview,
\url
{tug.org/interviews/fuchs.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {8}
macro:->\quad
\textbf
{``first
issue
(October
1980)
of
\textit
{TUGboat}''}\quad
{}\url
{tug.org/TUGboat/Contents/contents1-1.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {9}
macro:->\quad
\textbf
{``getting
\TeX
\
running
on
many
different
computers''}\quad
{}See
the
categories
Output
Devices,
Site
Reports,
and
``small''
TeX
at
\url
{tug.org/TUGboat/Contents/listkeyword.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {9}
macro:->\quad
\textbf
{``developments
in
the
\TeX
\
world
would
be
permanently
documented''}\quad
{}\textit
{TUGboat}
was
originally
subtitled
\textit
{The
\TeX
\
Users
Group
Newsletter};
as
of
1988
its
subtitle
became
\textit
{The
Communications
of
the
\TeX
\
Users
Group}.\vspace
{4pt}
\@endanWnote
\@doanWnote {9}
macro:->\quad
\textbf
{``\textit
{TUGboat}
has
served
the
typical
role''}\quad
{}In
parallel
with
\textit
{TUGboat},
TUG
published
13
issues
of
\textit
{\TeX
\
and
TUG
News}
from
1991--1995
and
20
issues
of
\textit
{The
Prac\TeX
\
Journal}
between
2005
and
2012.
The
news
function
of
the
former
was
merged
into
\textit
{TUGboat};
the
latter's
goal
was
to
publish
only
practical
articles,
where
\textit
{TUGboat}
has
a
spectrum
of
articles.\vspace
{4pt}
\@endanWnote
\@doanWnote {9}
macro:->\quad
\textbf
{``typography
practitioners
have
said''}\quad
{}For
example,
Charles
Bigelow
said
this:
Note
on
Typeface
Protection,
\textit
{TUGboat},
vol.~7,
no.~3,
1986,
pp.~146--151,
\url
{tug.org/TUGboat/tb07-3/tb16bigelow.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {10}
macro:->\quad
\textbf
{``began
to
produce
machine
drawn
letters''}\quad
{}Pages
64--72
of
Donald
E.
Knuth,
\textit
{Companion
to
the
Papers
of
Donald
Knuth},
Center
for
the
Study
of
Language
and
Information,
Stanford,
CA,
2012.\vspace
{4pt}
\@endanWnote
\@doanWnote {11}
macro:->\quad
\textbf
{\MF
\
implementation
collaborators}\quad
{}Tomas
Rokicki
was
another
implementation
contributor
to
the
Metafont
project.
While
at
Texas
A\&M,
Tomas
Rokicki
created
the
initial
version
of
what
became
the
Web2C
system
that
is
used
today
to
compile
\TeX
.
Rokicki
started
working
for
the
\TeX
\
project
in
the
summer
of
1985,
before
his
first
term
as
a
PhD
student
at
Stanford.
There
he
designed
and
implemented
the
PK
font
format
and
tools,
a
more
compact
form
for
the
bitmaps
output
by
Metafont.\vspace
{4pt}
\@endanWnote
\@doanWnote {11}
macro:->\quad
\textbf
{``part
of
his
1985
thesis''}\quad
{}John
Douglas
Hobby,
Digitized
Brush
Trajectories,
Stanford
dissertation,
August,
1985,
\url
{ect.bell-labs.com/who/hobby/thesis.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {11}
macro:->\quad
\textbf
{``Hobby
mostly
designed
the
algorithms
and
Knuth
wrote
all
the
code''}\quad
{}TUG
Interview
Corner,
Interview
of
John
Hobby,
\url
{tug.org/interviews/hobby.html}\vspace
{4pt}
\@endanWnote
\@doanWnote {12}
macro:->\quad
\textbf
{``fonts
were
improved
again''}\quad
{}As
described
in
this
and
the
next
subsection,
Knuth
redid
his
font
design
software
and
improved
his
set
of
fonts
several
times:
the
first
version
of
the
fonts
was
called
Almost
Modern;
a
second,
never
released,
version
was
called
Better
Modern.\vspace
{4pt}
\@endanWnote
\@doanWnote {12}
macro:->\quad
\textbf
{``a
program
of
some
23,000
lines''}\quad
{}The
book
\textit
{Metafont:
The
Program}
shows
the
Metafont
implementation
as
an
approximately
560-page
\texttt
{WEB}
code
listing
(intermingled
Pascal
code
and
documentation).
This
results
from
the
\texttt
{mf.web}
source
file
written
by
Knuth,
which
is
slightly
more
than
23,000
lines.
\texttt
{mf.web}
gets
compiled
(by
the
\texttt
{tangle}
program)
into
super-dense
Pascal
code
(only
suitable
for
computer
processing).
Translating
that
Pascal
code
into
C
(as
is
done
in
the
major
\TeX
\
distributions
nowadays,
C
compilers
being
much
more
widely
available
than
Pascal
compilers),
results
in,
coincidentally
enough,
about
23,000
lines
of
code,
more
or
less
as
a
human
programmer
might
write
them
(except
without
any
comments).
So
23,000
lines
is
a
plausible
measure
of
the
size
of
Metafont
either
way.
Although
there
are
many
more
refined
metrics
to
measure
program
complexity,
we
chose
to
mention
this
one
for
simplicity.
(By
the
way,
\TeX
\
is
very
nearly
the
same
size.)\vspace
{4pt}
\@endanWnote
\@doanWnote {12}
macro:->\quad
\textbf
{``wider
audience
and
to
encourage
support''}\quad
{}Jonathan
Seybold
email
of
2017-09-03.\vspace
{4pt}
\@endanWnote
\@doanWnote {12}
macro:->\quad
\textbf
{``thought
it
deserved
wider
attention''}\quad
{}Barbara
Beeton
was
also
at
Stanford
in
March
1980
(the
visit
timed
so
she
could
also
attend
the
Seybold-organized
seminar)
``to
learn
how
to
program
Metafont
and
to
create
a
prototype
Cyrillic
font
for
use
in
\textit
{Math
Reviews}.''
The
Seybold-organized
meeting
was
also
where
she
first
met
Bigelow.\vspace
{4pt}
\@endanWnote
\@doanWnote {12}
macro:->\quad
\textbf
{``thought
it
deserved
wider
attention''}\quad
{}Bigelow
notes
(email
of
2017-08-31),
``The
commercial
typesetting
systems
guys
[at
the
seminar]
all
said
that
\TeX
\
was
too
complicated
and
slow
to
be
commercially
acceptable.
Of
course,
they
are
all
gone
now.''\vspace
{4pt}
\@endanWnote
\@doanWnote {12}
macro:->\quad
\textbf
{``from
Charles
Bigelow
as
informal
email
text''}\quad
{}Emails
of
June
6
and
August
31,
2017.
A
parallel
version
of
the
story
is
in
his
interview
in
\textit
{TUGboat},
\url
{tug.org/TUGboat/tb34-2/tb107bigelow-wang.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{``a
notable
example
being
grammatology''}\quad
{}Which
was
based
on
an
older
notion
of
the
study
of
letters,
from
the
book
\textit
{A
Study
of
Writing:
An
introduction
to
the
study
of
grammatology}
by
I.J.
Gelb.\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{``\thinspace
{}`Concepts
of
Text'
course''}\quad
{}The
syllabus
for
that
course
is
available
in
the
Stanford
archives.\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{``\MF
\
for
lunch
bunch''}\quad
{}Before
Bigelow
got
to
Stanford,
Knuth
had
a
\TeX
-for-lunch
bunch.\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{Bernshte{\u
\i
}n
polynomials}\quad
{}\url
{en.wikipedia.org/wiki/Bernstein_polynomial}\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{Lynn
Ruggles}\quad
{}\label
{fn-rugglesreport}In
1983,
Lynn
Ruggles,
a
graduate
student
at
Stanford,
compiled
a
catalog
of
different
approaches
to
digital
type
tools:
``Letterform
Design
Systems'',
Stanford
Technical
Report
No.
STAN-CS-83-971,
\url
{i.stanford.edu/pub/cstr/reports/cs/tr/83/971/CS-TR-83-971.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{Southall
also
influenced
Knuth}\quad
{}\url
{tug.org/TUGboat/tb36-2/tb113southall.pdf},
\url
{i.stanford.edu/pub/cstr/reports/cs/tr/85/1074/CS-TR-85-1074.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{``first
academic
conference''}\quad
{}\url
{visiblelanguagejournal.com/issue/73}\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{``first
academic
conference''}\quad
{}At
the
time,
Bigelow
was
leading
the
committee
on
letterform
education
and
research
of
ATypI
(Association
Typographique
Internationale).\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{``number
of
interesting
reports
came
out''}\quad
{}Pijush
K.
Ghosh
on
Indian
scripts,
\url
{i.stanford.edu/pub/cstr/reports/cs/tr/83/965/CS-TR-83-965.pdf};
John
Hobby
and
Gu
Guoan
on
a
Chinese
Meta-Font,
\url
{i.stanford.edu/pub/cstr/reports/cs/tr/83/974/CS-TR-83-974.pdf};
A
formal
approach
to
letter
form
design
by
Ghosh
and
Bigelow
\url
{i.stanford.edu/pub/cstr/reports/cs/tr/83/966/CS-TR-83-966.pdf};
Letterform
Design
Systems
by
Lynn
Ruggles
(cited
above);
\label
{fn-euler-monograph}\textit
{The
Euler
Project
at
Stanford},
a
monograph
by
David
R.
Siegel,
1985.\vspace
{4pt}
\@endanWnote
\@doanWnote {13}
macro:->\quad
\textbf
{``commission
to
design
the
Euler
typeface''}\quad
{}Stanford
library
guide
to
the
Euler
project
archive,
\url
{pdf.oac.cdlib.org/pdf/stanford/uarc/sc0362.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {14}
macro:->\quad
\textbf
{``Knuth
remembers
that
the
digital
typography
program''}\quad
{}A
summary
of
the
\TeX
\
project,
video
\#70.\cite
{Knuthvideos}\vspace
{4pt}
\@endanWnote
\@doanWnote {14}
macro:->\quad
\textbf
{``the
\MF
\
class
which
Knuth''}\quad
{}Donald
E.
Knuth,
A
Course
in
\MF
\
Programming,
\textit
{TUGboat},
vol.~5
(1984),
no.~2,
pp.~105--118,
\url
{tug.org/TUGboat/tb05-2/tb10knut.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {14}
macro:->\quad
\textbf
{``he
considered
his
work
done''}\quad
{}Donald
Knuth,
Remarks
to
Celebrate
the
Publication
of
\textit
{Computers
\&
Typesetting},
\textit
{TUGboat},
vol.~7
(1986),
no.~2,
pp.~95--98,
\url
{tug.org/TUGboat/tb07-2/tb15knut.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {14}
macro:->\quad
\textbf
{``allow
arbitrary
8-bit
characters''}\quad
{}Donald
E.
Knuth,
The
New
Versions
of
\TeX
\
and
\MF
,
\textit
{TUGboat},
vol.~10
(1990),
no.~3,
pp.~325-328,
\url
{tug.org/TUGboat/tb10-3/tb25knut.pdf}\vspace
{4pt}
\@endanWnote
\@doanWnote {15}
macro:->\quad
\textbf
{``review
bug
reports
accumulated
in
the
interim''}\quad
{}See
``Errata''
at
\url
{www-cs-faculty.stanford.edu/~knuth/abcde.html}.\vspace
{4pt}
\@endanWnote
\@doanWnote {15}
macro:->\quad
\textbf
{``most
recent
two
\TeX
\
tuneups''}\quad
{}Knuth's
so-called
``tune-up''
reports
for
his
two
most
recent
reviews
are
readily
available:
Donald
Knuth,
The
\TeX
\
tuneup
of
2008,
\textit
{TUGboat},
vol.~29
(2008),
no.~1,
pp.~233--238,
\url
{tug.org/TUGboat/tb29-2/tb92knut.pdf};
Donald
Knuth,
The
\TeX
\
tuneup
of
2014,
\textit
{TUGboat},
vol.~35
(2014),
no.~1,
pp.~5--8,
\url
{tug.org/TUGboat/tb35-1/tb109knut.pdf}.
They
too
are
worth
reading
as
an
example
of
the
care
and
careful
explication
Knuth
puts
into
merely
fixing
a
rare
bug.\vspace
{4pt}
\@endanWnote
\@doanWnote {15}
macro:->\quad
\textbf
{``will
be
permanent
`features'\thinspace
{}''}\quad
{}\MF
\
has
its
own
sequence
of
version
numbers---increasingly
precise
approximations
of
$e$.\vspace
{4pt}
\@endanWnote