Hi Hans,
Thanks for your explanations.
When using constructions such as $f’’_2(x)$, I will adapt my input in order to
get what seems correct.
Best regards: OK
> On 17 May 2017, at 17:17, Hans Hagen <pra...@wxs.nl> wrote:
>
> On 5/17/2017 8:35 AM, Otared Kavian wrote:
>> Hi Hans,
>>
>> Thanks for having fixed the behavior of the prime in the latest beta release
>> (ConTeXt version 2017.05.15 21:48).
>> However, as you may see in the two attached PDF files, the result is still
>> incorrect when one types for example $f_2’’(x)$, which should give the same
>> result as $f’’_2(x)$.
>> The correct behaviour is that obtained with mkii. Indeed one can circumvent
>> the behaviour of the latest beta release of mkiv by using tricks such as the
>> ones in the example code below, but this should be avoided in my opinion.
>
> well, it depends on how one sees this '' mess
>
> the problem with primes is that in macro packages they are messy entities
> that should collapse or not (active char mess) and the more clever a macro
> packages becomes the harder it becomes to makes it robust and/or to fight
> against such heuristics
>
> add to that the fact that the symbol itself is a funny positioned something
> already raised in a font or not i.e. sometimes in need of superscript and
> sometimes explicitly not
>
> for unicode we need to turn two '' into a double and ''' into a and triple
> such
>
> that said, in context these thingies are at some point intercepted and their
> current state is looked at: superscript? multipel in a row? one ebing the
> nucleus of another ... etc .. the current (working again) behavior is what we
> support and i don't look forward to more heuristics
>
>
>> The following PDF have been obtained with mkii and mkiv with the following
>> example code.
>> Best regards: OK
>>
>> %%% begin derivatives-prime.tex
>> \starttext
>>
>> \startformula
>> f''_{2}(x) = f_{2}''(x) = f^{''}_{2}(x) = f_{2}^{''}(x) % =
>> f^{{}^{''}}_{2}(x)
>> \stopformula
>> As one may see the result of \type{f_{2}''(x) = } $f_{2}''(x)$ is not
>> correct in \type{mkiv}.
>>
>> The following positions of the superscripts \type{(3)} are correct both in
>> \type{mkii} and in \type{mkiv}.
>> \startformula
>> f^{(3)}_{2}(x) = f_{2}^{(3)}(x)
>> \stopformula
>>
>> \stoptext
>> %%% end derivatives-prime.tex
>>
>>
>>
>> ___________________________________________________________________________________
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>>
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>
>
> --
>
> -----------------------------------------------------------------
> Hans Hagen | PRAGMA ADE
> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
> ___________________________________________________________________________________
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> Wiki!
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___________________________________________________________________________________
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Wiki!
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