* maths simplifying fractions
[not found] <b0abd8db479372956483c067b268283067bb3b52.camel.ref@yahoo.com>
@ 2019-11-13 11:28 ` Martin Althoff
2019-11-13 21:32 ` Henri Menke
0 siblings, 1 reply; 4+ messages in thread
From: Martin Althoff @ 2019-11-13 11:28 UTC (permalink / raw)
To: ConTeXt users
Hi all, I am writing some maths exercises that include simplifying fractions. For that
reason I would like to cross out some numbers. Unfortunately overstrike doesn't do the
trick, eg with a 4 the overstrike is practically invisible.
Is there any way to get a diagonal stroke like the latex module "cancel" can do?
Thanks for any suggestions,
Martin
\starttext
\startformula
\frac{\overstrike{2}}{\overstrike{4}} = \frac{1}{2}
\stopformula
\stoptext
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* Re: maths simplifying fractions
2019-11-13 11:28 ` maths simplifying fractions Martin Althoff
@ 2019-11-13 21:32 ` Henri Menke
2019-11-15 13:45 ` Martin Althoff
0 siblings, 1 reply; 4+ messages in thread
From: Henri Menke @ 2019-11-13 21:32 UTC (permalink / raw)
To: ntg-context
On 11/14/19 12:28 AM, Martin Althoff wrote:
> Hi all, I am writing some maths exercises that include simplifying fractions. For that
> reason I would like to cross out some numbers. Unfortunately overstrike doesn't do the
> trick, eg with a 4 the overstrike is practically invisible.
>
> Is there any way to get a diagonal stroke like the latex module "cancel" can do?
This might help.
https://tex.stackexchange.com/questions/501056/equivalent-of-cancelto-in-context
> Thanks for any suggestions,
> Martin
>
> \starttext
> \startformula
> \frac{\overstrike{2}}{\overstrike{4}} = \frac{1}{2}
> \stopformula
> \stoptext
>
> ___________________________________________________________________________________
> 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://context.aanhet.net
> archive : https://bitbucket.org/phg/context-mirror/commits/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
>
___________________________________________________________________________________
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://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: maths simplifying fractions
2019-11-13 21:32 ` Henri Menke
@ 2019-11-15 13:45 ` Martin Althoff
0 siblings, 0 replies; 4+ messages in thread
From: Martin Althoff @ 2019-11-15 13:45 UTC (permalink / raw)
To: ntg-context
sorry for the slow reply, a cold knocked me out.
Thanks Henri for pointing to a solution you already offered on stackexchange! I will save
it as a good universal solution.
Thanks to Kitz, for the very specific solution. This is what I am using at the moment.
This might help.
> https://tex.stackexchange.com/questions/501056/equivalent-of-cancelto-in-context
>
> >
___________________________________________________________________________________
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://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
* maths simplifying fractions
@ 2019-11-14 1:10 jkitz
0 siblings, 0 replies; 4+ messages in thread
From: jkitz @ 2019-11-14 1:10 UTC (permalink / raw)
To: ntg-context@ntg.nl ConTeXt users
Hi Altoff.
Maybe this markup will help?
\startuniqueMPgraphic{cancel}
pickup pencircle scaled 0.7pt ;
path p ; p := OverlayBox topenlarged -ExHeight bottomenlarged -ExHeight ;
draw llcorner p -- urcorner p withcolor OverlayColor ;
\stopuniqueMPgraphic
\defineoverlay[cancel][\uniqueMPgraphic{cancel}]
\defineframed[cancel]
[background=cancel,frame=off,offset=0pt,location=low]
\starttext
\startformula
6 \frac{3}{8} \div 4 \frac{1}{2} = \frac{27}{4} \div \frac{9}{2} = \frac{\cancel{27}^3}{\cancel{4}^2} \times \frac{\cancel{2}^1}{\cancel{9}^1} = \frac{3}{2} = 1 \frac{1}{2}
\stopformula
\stoptext
HTH,
kitz
___________________________________________________________________________________
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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archive : https://bitbucket.org/phg/context-mirror/commits/
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___________________________________________________________________________________
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2019-11-13 11:28 ` maths simplifying fractions Martin Althoff
2019-11-13 21:32 ` Henri Menke
2019-11-15 13:45 ` Martin Althoff
2019-11-14 1:10 jkitz
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