Howto typeset physical half-life

Howto typeset physical half-life

[Christian Prim]

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Hi

a year or so before one could simply typeset the physical half-life as
shown in MWE:

\usetypescript[palatino]
\setupbodyfont[palatino]
\starttext
    ½ α
    \m{T_α}
    \m{T_½}
\stoptext

The greek letter is just to show, that utf-8 works as expected. In actual
beta (and probably longer before) this doesn't work anymore. What have I
missed?

Thanks
Christian

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Re: Howto typeset physical half-life

[Hans Hagen]

On 4/17/2015 9:41 PM, Christian Prim wrote:
> Hi
>
> a year or so before one could simply typeset the physical half-life as
> shown in MWE:
>
> \usetypescript[palatino]
> \setupbodyfont[palatino]
> \starttext
>      ½ α
>      \m{T_α}
>      \m{T_½}
> \stoptext
>
> The greek letter is just to show, that utf-8 works as expected. In
> actual beta (and probably longer before) this doesn't work anymore. What
> have I missed?

Are you sure? palatino doesn't have that character in its math 
repertoire (it might have been present in the alternative that uses px 
fonts combined with a pagella text font in which case they're coming 
from text). The math subsystem of context does to some extend accept 
super and subscript characters but not (at least not now) these 
fractions. Is this really needed? It can be done but quite some extra 
overhead for bad practice.

Anyway, I've added a checker so that at least it gets reported (assuming 
the use of one math collection):

mkiv lua stats  > unknown math characters: ½ (U+000BD) (n=3)

Hans



-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: Howto typeset physical half-life

[Christian Prim]

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Hi Hans

thanks for the checker, that surely helps. So I could find a solution
(perhaps not the best) for my problem:

\m{T_{\text{½}}}

Thanks again
Christian



2015-04-17 23:51 GMT+02:00 Hans Hagen <pragma@wxs.nl>:

> On 4/17/2015 9:41 PM, Christian Prim wrote:
>
>> Hi
>>
>> a year or so before one could simply typeset the physical half-life as
>> shown in MWE:
>>
>> \usetypescript[palatino]
>> \setupbodyfont[palatino]
>> \starttext
>>      ½ α
>>      \m{T_α}
>>      \m{T_½}
>> \stoptext
>>
>> The greek letter is just to show, that utf-8 works as expected. In
>> actual beta (and probably longer before) this doesn't work anymore. What
>> have I missed?
>>
>
> Are you sure? palatino doesn't have that character in its math repertoire
> (it might have been present in the alternative that uses px fonts combined
> with a pagella text font in which case they're coming from text). The math
> subsystem of context does to some extend accept super and subscript
> characters but not (at least not now) these fractions. Is this really
> needed? It can be done but quite some extra overhead for bad practice.
>
> Anyway, I've added a checker so that at least it gets reported (assuming
> the use of one math collection):
>
> mkiv lua stats  > unknown math characters: ½ (U+000BD) (n=3)
>
> Hans
>
>
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
>                                              | www.pragma-pod.nl
> -----------------------------------------------------------------
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________

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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

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archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Howto typeset physical half-life

[Alan BRASLAU]

On Fri, 17 Apr 2015 23:51:56 +0200
Hans Hagen <pragma@wxs.nl> wrote:

> Anyway, I've added a checker so that at least it gets reported
> (assuming the use of one math collection):
> 
> mkiv lua stats  > unknown math characters: ½ (U+000BD) (n=3)

This will be quite useful.

A question in general for the mailing list: should missing math (and
text) characters simply not appear or should some placeholder (such as
a box) be rendered in its place? This could help with proofreading.

Nevertheless, having missing characters reported in the log file is a
good diagnostic.

Alan
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: Howto typeset physical half-life

[Hans Hagen]

On 4/18/2015 11:28 AM, Alan BRASLAU wrote:
> On Fri, 17 Apr 2015 23:51:56 +0200
> Hans Hagen <pragma@wxs.nl> wrote:
>
>> Anyway, I've added a checker so that at least it gets reported
>> (assuming the use of one math collection):
>>
>> mkiv lua stats  > unknown math characters: ½ (U+000BD) (n=3)
>
> This will be quite useful.
>
> A question in general for the mailing list: should missing math (and
> text) characters simply not appear or should some placeholder (such as
> a box) be rendered in its place? This could help with proofreading.
>
> Nevertheless, having missing characters reported in the log file is a
> good diagnostic.

we already have

\enabletrackers[fonts.missing=replace] % top of file

which should show something with

\starttext
     \m{T_α}
     \m{T_½}
     \m{T½_½}
     test \char3211 test
\stoptext

I've extended that to math so that you will get a placeholder there too 
(more visible with this option, otherwise a "?" will be used as 
replacement).

Hans



-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________