[NTG-context] Problem with: 0.222 222 222_3

[NTG-context] Problem with: 0.222 222 222_3

[Ursula Hermann]

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Dear List,
Me again,
I have a question to this formula. I want to use 0.222 222 222_3, but I get 0.222222222_3. And another question too: how can I say, that I want not so much place between formula lines?

\setuppapersize[A4]
\setupbodyfont[thermes, 8pt]
\starttext
\startformula
x_1 = 0.222 222 222_3
\stopformula
\stoptext

I want to have
\startformula
x_1= 0.222 222 222
x_1=0.222 222 222
\stopformula ,

but not
\startformula
a=b

a=b
\stopformula

Many thanks for your help and tips.

Uschi

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[NTG-context] Re: Problem with: 0.222 222 222_3

[Wolfgang Schuster]

Am 25.03.2025 um 14:50 schrieb Ursula Hermann:
> Dear List,
> 
> Me again,
> 
> I have a question to this formula. I want to use 0.222 222 222_3, but I 
> get 0.222222222_3. And another question too: how can I say, that I want 
> not so much place between formula lines?
> 
> \setuppapersize[A4]
> \setupbodyfont[thermes, 8pt]
> \starttext
> \startformula
> x_1 = 0.222 222 222_3
> \stopformula
> 
> \stoptext
> 
> I want to have
> 
> \startformula
> x_1= 0.222 222 222
> x_1=0.222 222 222
> \stopformula ,
> 
> but not
> 
> \startformula
> a=b
> 
> a=b
> \stopformula
> 
> Many thanks for your help and tips.

1. Math mode has its own rules regarding spaces.

2. Use \digits to format the number.

3. Use \startalign or \startmathalignment to align multiple lines in a 
formula.

%%%% begin example
\setdigitmode{4}

\starttext

\startformula
\startmathalignment[align={1:right,2:left}]
\NC x_1 \EQ \digits{0.222,222,222}_3 \NR
\NC x_1 \EQ \digits{0.222,222,222}_3 \NR
\stopmathalignment
\stopformula

\stoptext
%%%% end example

For more information about math look into the mathincontext manual.

Wolfgang

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[NTG-context] Re: Problem with: 0.222 222 222_3

[Pablo Rodriguez via ntg-context]

On 3/25/25 17:45, Wolfgang Schuster wrote:
> [...]
> 1. Math mode has its own rules regarding spaces.

Hi Wolfgang,

I thought "spaceinbetween" was a valid spacing option (at least, it
seems to work here).

Pablo
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[NTG-context] Re: Problem with: 0.222 222 222_3

[Pablo Rodriguez via ntg-context]

On 3/25/25 14:50, Ursula Hermann wrote:
> I have a question to this formula. I want to use 0.222 222 222_3, but I
> get 0.222222222_3. And another question too: how can I say, that I want
> not so much place between formula lines?

Hi Ursula,

two comments on your code (once Wolfgang solved all issues):

> \setuppapersize[A4]

Portrait A4 is the default in ConTeXt (unless I have been missing
something for decades).

> \setupbodyfont[thermes, 8pt]

The font for Times is termes or times (using TeX Gyre Termes).

I hope it helps,

Pablo
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[NTG-context] Re: Problem with: 0.222 222 222_3

[Max Chernoff via ntg-context]

Hi Pablo,

On Tue, 2025-03-25 at 18:03 +0100, Pablo Rodriguez via ntg-context
wrote:
> On 3/25/25 14:50, Ursula Hermann wrote:
> > \setuppapersize[A4]
>
> Portrait A4 is the default in ConTeXt (unless I have been missing
> something for decades).

If you're using the ConTeXt from TeX Live, the default paper size
depends on the system-wide paper size, which you can set with "tlmgr
paper [a4|letter]". See the files tex/context/texlive/cont-sys.mk{iv,xl}
for the implementation.

Thanks,
-- Max
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[NTG-context] Re: Problem with: 0.222 222 222_3

[Pablo Rodriguez via ntg-context]

On 3/25/25 22:31, Max Chernoff via ntg-context wrote:
> Hi Pablo,

Many thanks for your correction, Max.

I think it was over five years ago the last time I installed TeX Live
installed on my computer.

Before that, I quickly realized (wisely advised by this mailing-list
participants) that it was way better to use the pure ConTeXt
distribution than ConTeXt from TeX Live.

> On Tue, 2025-03-25 at 18:03 +0100, Pablo Rodriguez wrote:
>> On 3/25/25 14:50, Ursula Hermann wrote:
>>> \setuppapersize[A4]
>>
>> Portrait A4 is the default in ConTeXt (unless I have been missing
>> something for decades).
>
> If you're using the ConTeXt from TeX Live, the default paper size
> depends on the system-wide paper size, which you can set with "tlmgr
> paper [a4|letter]".

Ursula, I apologize for my wrong indication.

Pablo
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