\mathextensible{"21FE}

Elspeth McGullicuddy

24 Apr 2014 24 Apr '14

4:24 p.m.

Dear all, The following example doesn't work for me: \setupbodyfont[xits] \starttext \math{x\mathextensible{"2194}{hello}{}y} \math{x\mathextensible{"21FE}{hello}{}y} \math{\char"21FE} \stoptext I found the symbol which I needed there: http://en.wikipedia.org/wiki/Arrow_%28symbol%29#Arrows_in_Unicode and there: http://milde.users.sourceforge.net/LUCR/Math/unimathcmds.pdf Kind regards, Chris

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Wolfgang Schuster

24 Apr 24 Apr

8:32 p.m.

Am 24.04.2014 um 18:24 schrieb Elspeth McGullicuddy :

...

Dear all, The following example doesn't work for me:

\setupbodyfont[xits] \starttext \math{x\mathextensible{"2194}{hello}{}y} \math{x\mathextensible{"21FE}{hello}{}y} \math{\char"21FE} \stoptext

I found the symbol which I needed there: http://en.wikipedia.org/wiki/Arrow_%28symbol%29#Arrows_in_Unicode and there: http://milde.users.sourceforge.net/LUCR/Math/unimathcmds.pdf

\setupbodyfont[xits] \starttext \math{a \leftrightarrow b \rightarrowtriangle c} \math{a ↔ b ⇾ c} \stoptext Wolfgang

Elspeth McGullicuddy

9:06 p.m.

Thanks for the answer, I wanted to use to use the mechanism described in "about.pdf" for extensible arrows with possibly text above, under... I've had a look at the "xits-math.tma". Though U+2194 and U+21FE are both arrows, U+2194 has an "horizontal part" field in contrast to U+21FE how hasn't. So I guess the "otf" font might be the culprit. And meddle with fonts is impossible a task. For the present I will content myself with something like \math{\overset{f}{-\kern-1ex\rightarrowtriangle}} There might be a better way to achieve that in Context, I don't know. Chris On Thu, Apr 24, 2014 at 10:32 PM, Wolfgang Schuster wrote:

...

Am 24.04.2014 um 18:24 schrieb Elspeth McGullicuddy :

...
Dear all, The following example doesn't work for me:

\setupbodyfont[xits] \starttext \math{x\mathextensible{"2194}{hello}{}y} \math{x\mathextensible{"21FE}{hello}{}y} \math{\char"21FE} \stoptext

I found the symbol which I needed there: http://en.wikipedia.org/wiki/Arrow_%28symbol%29#Arrows_in_Unicode and there: http://milde.users.sourceforge.net/LUCR/Math/unimathcmds.pdf

\setupbodyfont[xits]

\starttext

\math{a \leftrightarrow b \rightarrowtriangle c}

\math{a ↔ b ⇾ c}

\stoptext

Wolfgang ___________________________________________________________________________________ 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 ___________________________________________________________________________________

Wolfgang Schuster

9:25 p.m.

Am 24.04.2014 um 23:06 schrieb Elspeth McGullicuddy :

...

Thanks for the answer,

I wanted to use to use the mechanism described in "about.pdf" for extensible arrows with possibly text above, under... I've had a look at the "xits-math.tma". Though U+2194 and U+21FE are both arrows, U+2194 has an "horizontal part" field in contrast to U+21FE how hasn't. So I guess the "otf" font might be the culprit. And meddle with fonts is impossible a task.

For the present I will content myself with something like \math{\overset{f}{-\kern-1ex\rightarrowtriangle}} There might be a better way to achieve that in Context, I don't know.

\setupbodyfont[xits] \starttext \starttabulate[|l|lm|] \NC \tex{overleftarrow} \NC \overleftarrow{top} \NC\NR \NC \tex{overrightarrow} \NC \overrightarrow{text} \NC\NR \NC \tex{overleftrightarrow} \NC \overleftrightarrow{text} \NC\NR \NC \tex{overtwoheadleftarrow} \NC \overtwoheadleftarrow{text} \NC\NR \NC \tex{overtwoheadrightarrow} \NC \overtwoheadrightarrow{text} \NC\NR \NC \tex{texoverleftharpoondown} \NC \overleftharpoondown{text} \NC\NR \NC \tex{overleftharpoonup} \NC \overleftharpoonup{text} \NC\NR \NC \tex{overrightharpoondown} \NC \overrightharpoondown{text} \NC\NR \NC \tex{overrightharpoonup} \NC \overrightharpoonup{text} \NC\NR \TB \NC \tex{underleftarrow} \NC \underleftarrow{text} \NC\NR \NC \tex{underrightarrow} \NC \underrightarrow{text} \NC\NR \NC \tex{underleftrightarrow} \NC \underleftrightarrow{text} \NC\NR \NC \tex{undertwoheadleftarrow} \NC \undertwoheadleftarrow{text} \NC\NR \NC \tex{undertwoheadrightarrow} \NC \undertwoheadrightarrow{text} \NC\NR \NC \tex{underleftharpoondown} \NC \underleftharpoondown{text} \NC\NR \NC \tex{underleftharpoonup} \NC \underleftharpoonup{text} \NC\NR \NC \tex{underrightharpoondown} \NC \underrightharpoondown{text} \NC\NR \NC \tex{underrightharpoonup} \NC \underrightharpoonup{text} \NC\NR \stoptabulate \stoptext Wolfgang

Elspeth McGullicuddy

10:43 p.m.

In about.pdf on can see that U+21FE (rightarrowtriangle) is eligible for use with \mathextensible. When one look at the code for \mathextensible in "math-stc.mkvi", one can see there is a mechanism of fallback. So, since the character is implemented in "xits", there might be a way to have "\mathextensible{"21FE} to work... Chris On Thu, Apr 24, 2014 at 11:25 PM, Wolfgang Schuster wrote:

...

Am 24.04.2014 um 23:06 schrieb Elspeth McGullicuddy :

...
Thanks for the answer,

I wanted to use to use the mechanism described in "about.pdf" for extensible arrows with possibly text above, under... I've had a look at the "xits-math.tma". Though U+2194 and U+21FE are both arrows, U+2194 has an "horizontal part" field in contrast to U+21FE how hasn't. So I guess the "otf" font might be the culprit. And meddle with fonts is impossible a task.

For the present I will content myself with something like \math{\overset{f}{-\kern-1ex\rightarrowtriangle}} There might be a better way to achieve that in Context, I don't know.

\setupbodyfont[xits]

\starttext

\starttabulate[|l|lm|] \NC \tex{overleftarrow} \NC \overleftarrow{top} \NC\NR \NC \tex{overrightarrow} \NC \overrightarrow{text} \NC\NR \NC \tex{overleftrightarrow} \NC \overleftrightarrow{text} \NC\NR \NC \tex{overtwoheadleftarrow} \NC \overtwoheadleftarrow{text} \NC\NR \NC \tex{overtwoheadrightarrow} \NC \overtwoheadrightarrow{text} \NC\NR \NC \tex{texoverleftharpoondown} \NC \overleftharpoondown{text} \NC\NR \NC \tex{overleftharpoonup} \NC \overleftharpoonup{text} \NC\NR \NC \tex{overrightharpoondown} \NC \overrightharpoondown{text} \NC\NR \NC \tex{overrightharpoonup} \NC \overrightharpoonup{text} \NC\NR \TB \NC \tex{underleftarrow} \NC \underleftarrow{text} \NC\NR \NC \tex{underrightarrow} \NC \underrightarrow{text} \NC\NR \NC \tex{underleftrightarrow} \NC \underleftrightarrow{text} \NC\NR \NC \tex{undertwoheadleftarrow} \NC \undertwoheadleftarrow{text} \NC\NR \NC \tex{undertwoheadrightarrow} \NC \undertwoheadrightarrow{text} \NC\NR \NC \tex{underleftharpoondown} \NC \underleftharpoondown{text} \NC\NR \NC \tex{underleftharpoonup} \NC \underleftharpoonup{text} \NC\NR \NC \tex{underrightharpoondown} \NC \underrightharpoondown{text} \NC\NR \NC \tex{underrightharpoonup} \NC \underrightharpoonup{text} \NC\NR \stoptabulate

\stoptext

Wolfgang ___________________________________________________________________________________ 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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Elspeth McGullicuddy
Wolfgang Schuster