Problem with \max

Problem with \max

[Tarik Kara]

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A while ago a have posted a message about \max not working as expected
when one has

\setupbodyfont[ams]

in the document. For example the following code

\setupbodyfont[ams]

\starttext
$x = \max \{y: y\in A\}$
\stoptext

Does not print a "max" after "x=" but prints "{y : y\in A}"  at a
smaller size. I am attaching the pdf output and the log file. What is the
problem and how can I solve it. 

Thanks,

Tar{\i}k

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This is pdfeTeX, Version 3.14159-14f-released-20000525-2.1 (MiKTeX 2.1) (preloaded format=cont-en 2001.7.16)  3 AUG 2001 10:19
entering extended mode
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(max_test.tex{pdftex.cfg}

ConTeXt  ver: 2001.7.11  fmt: 2001.7.16  int: english  mes: english

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systems        : beware: some patches loaded from cont-new.tex!
system (E-TEX) : [line 202] \ifcsname 
)
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(d:\localtexmf\tex\context\base\cont-old.tex
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(d:\localtexmf\tex\context\base\cont-fil.tex
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<protect 4> <protect 3>)
specials       : fdf loaded
<unprotect 3> <protect 3> <protect 2>)
specials       : fdf,tpd loaded
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(./max_test.tuo) (./max_test.tuo) (./max_test.tuo) (./max_test.tuo)
(./max_test.tuo) (./max_test.tuo) (./max_test.tuo)
(d:\localtexmf\tex\context\base\type-pre.tex
typescript     : [math] [ams] [all]
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(d:\localtexmf\tex\context\base\type-map.tex)
(d:\localtexmf\tex\context\base\type-spe.tex
(d:\localtexmf\tex\context\base\math-ams.tex))
(d:\localtexmf\tex\context\base\type-exa.tex)) (./max_test.tuo) (./max_test.tuo
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systems        : end file max_test at line 5
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Output written on max_test.pdf (1 page, 13296 bytes).

Re: Problem with \max

[Eckhart Guthöhrlein]

At 10:24 03.08.2001 +0300, Tarik Kara wrote:
>A while ago a have posted a message about \max not working as expected
>when one has
>
>\setupbodyfont[ams]
>
>in the document. For example the following code
>
>\setupbodyfont[ams]
>
>\starttext
>$x = \max \{y: y\in A\}$
>\stoptext
>
>Does not print a "max" after "x=" but prints "{y : y\in A}"  at a
>smaller size. I am attaching the pdf output and the log file. What is the
>problem and how can I solve it.

The ams symbols are made available in fonts chosable by \ma and \mb. 
According to the context font selection commands, this means that \max 
switches to \ma at a smaller size (try \maxx). (Hans will correct me if I 
didn't get it right, I hope).
Until the collision is fixed, you could define the max function under a 
different name, e.g.
\def\maxf{\mathop{\rm max}\nolimits}

Eckhart

Re: Problem with \max

[Hans Hagen]

At 10:29 AM 8/3/2001 +0200, Eckhart Guthöhrlein wrote:
>At 10:24 03.08.2001 +0300, Tarik Kara wrote:
>>A while ago a have posted a message about \max not working as expected
>>when one has
>>
>>\setupbodyfont[ams]
>>
>>in the document. For example the following code
>>
>>\setupbodyfont[ams]
>>
>>\starttext
>>$x = \max \{y: y\in A\}$
>>\stoptext
>>
>>Does not print a "max" after "x=" but prints "{y : y\in A}"  at a
>>smaller size. I am attaching the pdf output and the log file. What is the
>>problem and how can I solve it.
>
>The ams symbols are made available in fonts chosable by \ma and \mb. 
>According to the context font selection commands, this means that \max 
>switches to \ma at a smaller size (try \maxx). (Hans will correct me if I 
>didn't get it right, I hope).
>Until the collision is fixed, you could define the max function under a 
>different name, e.g.
>\def\maxf{\mathop{\rm max}\nolimits}

ah, that's a pretty good analysis, i need to catch this!

for the moment say:

   \appendtoks\protected\def\max{\dohandlemathtoken{max}}\to\everymath

in cont-new.tex

Hans

PS. Time to test this in font-ini.tex: ¦  {%\def\c!mm!{#2}\ifx\c!mm!\c!mm 
\else % test first

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