Am 26.04.2011 um 13:36 schrieb Matthieu Stigler:
>
> Le 26/04/2011 12:36, Hans Hagen a écrit :
>> On 26-4-2011 12:02, Matthieu Stigler wrote:
>>> Dear Hans
>>>
>>> Thanks for your quick answer! I was however not able to produce the
>>> graph with the textext code... Should I actually then use another
>>> compiler? I tried with context and texexec (I thought texexec is the
>>> compiler for mkiv, right? I'm on linux ubuntu).
>>
>> no, use the 'context' command as texexec is for mkii
>>
> ok, so I was using the right compiler.... I get a mystake while trying to
> compile a file with the code you sent... you didn't? Would you be so nice and
> send complete file, so I can check what is wrong?
>
>
>>> I saw also that, as you mention, context has a \frac:
>>> http://wiki.contextgarden.net/Math_with_newmat
>>
>> indeed, \frac is already there for a long time (ams compatible command)
>
>> btw, in mkiv there is no m-newmath
>>
>>> I tried then to simply add \usemodule[newmat] and compile with context,
>>> but did not work... Code below, error message below below...
>>> ! Math error: parameter \Umathfraction_del_size\displaystyle is not set.
>>> l.3 ...t{411}{$\displaystyle \frac {\sigma _t}{a}$
>>> }
>>> <inserted text> ...ore.mp ; fi ; ;;;]===], false)}
>>
>> make sure that a font is loaded that has math before \starttext is seen
>>
>> (try with \setupbodyfont[palatino] at the top of your file)
>>
> this does not work neither.... I still get error message with this code:
>
> \usemodule[newmat]
>
> \setupbodyfont[palatino]
>
> \starttext
>
> \startMPpage
>
> label.top(textext("$ \frac{\sigma_t}{a}$") scaled 1.00, (1, 1));
>
> %label.top(btex $ \frac{\sigma_t}{a}$ etex, (0, 10));
>
> %label.top(textext( $\displaystyle \frac{\sigma_t}{a}$ ) scaled 1.00, (1,
> 1));
>
> \stopMPpage
>
> \stoptext
Hi,
this works for me.
\setupbodyfont[palatino]
\startMPpage[offset=1ex]
u := cm ;
label.top(textext("$ \frac{\sigma_t}{a}$") scaled 2, origin);
label.top(textext("$ \frac{\sigma_t}{a}$"), (u,u));
label.top(textext("$\dfrac{\sigma_t}{a}$") scaled .5, (u,0));
\stopMPpage
Greeting
Andreas
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