Re: [NTG-context] Lucida-1.901 (2023-01-21) available
On 1/25/2023 6:24 PM, Mikael Sundqvist via ntg-context wrote:
On Wed, Jan 25, 2023 at 11:02 AM Otared Kavian via ntg-context
wrote:
Hi,
Thanks Hraban for the information and the link to the article by Hans and
Mikael about the math fonts in Lucida.
I very much appreciated that article: one sees how the handling of almost
impercebtile details in ConTeXt make us to adhere to and love LuaMetaTeX… So a
great thank you to Hans and Mikael for all this work!
Regarding the details of vertical alignment in math, I wonder whether the
column « : » in front of the equal sign « = », in the combination « := » (used
to define for instance a new variable) should be alos centered around the math
axis, as explained in the article. For instance in the following example
\setupbodyfont[lucidaot,12pt]
\starttext
\startformula
f(x) := -(u|x) := - \langle u, x \rangle
\stopformula
\stopformula
\startformula
f : A \longrightarrow B
\stopformula
\stoptext
it seems to me that the lower dot (or square…) in the semicolumn of the first
formula (in front of the equal sign) is lower than in the second formula.
Best regards: Otared
Thank you for the kind words, Otared,
Regarding the colons (and other symbols with "dots"), I would say it
is still not optimal in Lucida (and difficult to make it "consistent",
there are too many symbols that are at the moment different). But in
your example you can use \colonequals and \colon if you prefer. They
are centered around the math axis.
Best, Mikael
\setupbodyfont[lucidaot,12pt]
\starttext
\startformula
f(x) := -(u|x) \colonequals - \langle u, x \rangle
\stopformula
\startformula
f : A \longrightarrow B \breakhere
f \colon A \longrightarrow B
\stopformula
\startformula
\mathaxisbelow := \colonequals : \colon
\stopformula
\stoptext
There is a (experimental as we played with it and then got distracted)
feature that makes some symbols adapt to spacing in the input.
\starttext
\setupmathematics[autospacing=yes]
\setupmathematics[collapsing=2]
\im{A:B} and \im{A : B}\par
\im{A:=B} and \im{A := B}\par
\im{A\colonequals B} and \im{A {\colonequals} B}\par
\stoptext
the second line is not yet ok as collapsing the := (old feature) comes
at the wrong time when we do autospacing (something Mikasl and I now
need to discuss and test)
This autospacing is part of some larger effort, for instance we can also
auto handle fences and so. All this relates to minimizing the input and
make it a bit more natural. Think (1,2) vb (1, 2) where we - due to the
many more classes that we have - want spacing to be right.
All will be revealed in the upcoming releases and the upcoming 3145 page
math manual.
Hans
-
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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Re: [NTG-context] Lucida-1.901 (2023-01-21) available
On Wed, Jan 25, 2023 at 11:02 AM Otared Kavian via ntg-context wrote: > > Hi, > > Thanks Hraban for the information and the link to the article by Hans and > Mikael about the math fonts in Lucida. > > I very much appreciated that article: one sees how the handling of almost > impercebtile details in ConTeXt make us to adhere to and love LuaMetaTeX… So > a great thank you to Hans and Mikael for all this work! > > Regarding the details of vertical alignment in math, I wonder whether the > column « : » in front of the equal sign « = », in the combination « := » > (used to define for instance a new variable) should be alos centered around > the math axis, as explained in the article. For instance in the following > example > > \setupbodyfont[lucidaot,12pt] > \starttext > \startformula > f(x) := -(u|x) := - \langle u, x \rangle > \stopformula > \stopformula > \startformula > f : A \longrightarrow B > \stopformula > \stoptext > > it seems to me that the lower dot (or square…) in the semicolumn of the first > formula (in front of the equal sign) is lower than in the second formula. > > Best regards: Otared Thank you for the kind words, Otared, Regarding the colons (and other symbols with "dots"), I would say it is still not optimal in Lucida (and difficult to make it "consistent", there are too many symbols that are at the moment different). But in your example you can use \colonequals and \colon if you prefer. They are centered around the math axis. Best, Mikael \setupbodyfont[lucidaot,12pt] \starttext \startformula f(x) := -(u|x) \colonequals - \langle u, x \rangle \stopformula \startformula f : A \longrightarrow B \breakhere f \colon A \longrightarrow B \stopformula \startformula \mathaxisbelow := \colonequals : \colon \stopformula \stoptext ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
Re: [NTG-context] Lucida-1.901 (2023-01-21) available
Hi, Thanks Hraban for the information and the link to the article by Hans and Mikael about the math fonts in Lucida. I very much appreciated that article: one sees how the handling of almost impercebtile details in ConTeXt make us to adhere to and love LuaMetaTeX… So a great thank you to Hans and Mikael for all this work! Regarding the details of vertical alignment in math, I wonder whether the column « : » in front of the equal sign « = », in the combination « := » (used to define for instance a new variable) should be alos centered around the math axis, as explained in the article. For instance in the following example \setupbodyfont[lucidaot,12pt] \starttext \startformula f(x) := -(u|x) := - \langle u, x \rangle \stopformula \stopformula \startformula f : A \longrightarrow B \stopformula \stoptext it seems to me that the lower dot (or square…) in the semicolumn of the first formula (in front of the equal sign) is lower than in the second formula. Best regards: Otared > On 23 Jan 2023, at 09:39, Henning Hraban Ramm via ntg-context > wrote: > > https://tug.org/pipermail/lucida/2023-January/000921.html > > A new version (1.901) of the Lucida OpenType fonts from TUG is > available. As with previous updates, there's no additional charge if > you've already purchased licenses; you can use the same download > information sent to you at the time of purchase to get the new fonts. > (If you've lost the download info, you can email us at > lucida-admin at tug.org.) > > I will append the changes for this release. The same information is also > online at https://tug.org/store/lucida/NEWS.txt. > > To summarize, the most significant changes have been to the math fonts, > especially the regular-weight LucidaBrightMathOT. Many of these changes > were discussed in greater detail in the recent article about Lucida math > by Hans Hagen and Mikael Sundqvist: > https://tug.org/TUGboat/tb43-3/tb135hagen-lucida.pdf > > The four Lucida Sans fonts and the three specialized fonts (Blackletter, > Calligraphy, Handwriting) are not changed at all from the last release > (not even version numbers or dates). All other fonts were changed. > > On behalf of TUG, I thank Hans, Mikael, and Michael Sharpe, who among > them did essentially all of the technical font editing for this > release. And we must thank Chuck Bigelow and Kris Holmes (they approved > this release, as always), without whom nothing could be done. > > Bug reports and character/feature requests are welcome (email to this > list is best), though, as usual, we cannot promise any particular > timeline for the next release. > > Happy typesetting, > Karl [Berry] > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://www.ntg.nl/mailman/listinfo/ntg-context > webpage : https://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : https://contextgarden.net > ___ Otared Kavian e-mail: ota...@gmail.com Phone: +33 6 88 26 70 95 ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
