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Hi Hans and Mikael, I think there is an issue with the size of math fonts in \frac when used in math alignments, as it is is shown in the following example. %% begin bug-mathalignment.tex \definemathmatrix[alignedcases] [align={1:right,2:left,3:left}, distance=3pt, left={\left\{}, right={\right.}, style=\displaystyle] \starttext Consider this \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula or this (with\type{\displaystyle} added) \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \displaystyle\frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula Actually, one should have this \startformula \frac{\partial u}{\partial {\bi n}} = V u + \phi \qquad\text{on }\, \partial\Omega. \stopformula If one adds \type{\displaystyle} both to the numerator and denominator of \type{\frac}, the result is correct: \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \frac{\displaystyle\partial u}{\displaystyle\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula \stoptext %% end bug-mathalignment.tex
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Dear Otared,
I think there is an issue with the size of math fonts in \frac when used in math alignments, as it is is shown in the following example.
I confirm what you said. However, if I use \dm{} instead of \displaystyle as following, then the output is correct. \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \dm{\frac{\partial u}{\partial {\bi n}}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula or this (with\type{\displaystyle} added) \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \dm{\frac{\partial u}{\partial {\bi n}}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula In this example, it is OK to use \dm inside of \startformula … \stopformula. I am not sure that it is what Hans and Mikael want. Thanks, Best regards, Dalyoung
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Dear Jeong, Thanks for testing my example, and pointing to the solution using \dm (which I didn’t know…). I think the correct behaviour of math alignments should avoid using additional commands such as \dm. We’ll see what Hans and Mikael say. Best regards: OK
On 2 Nov 2022, at 12:53, Jeong Dal via ntg-context
wrote: Dear Otared,
I think there is an issue with the size of math fonts in \frac when used in math alignments, as it is is shown in the following example.
I confirm what you said.
However, if I use \dm{} instead of \displaystyle as following, then the output is correct.
\placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \dm{\frac{\partial u}{\partial {\bi n}}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula or this (with\type{\displaystyle} added) \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \dm{\frac{\partial u}{\partial {\bi n}}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula
In this example, it is OK to use \dm inside of \startformula … \stopformula. I am not sure that it is what Hans and Mikael want.
Thanks,
Best regards,
Dalyoung
___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
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Otared Kavian e-mail: otared@gmail.com Phone: +33 6 88 26 70 95
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Hi,
On Wed, Nov 2, 2022 at 9:19 PM Otared Kavian via ntg-context
Dear Jeong,
Thanks for testing my example, and pointing to the solution using \dm (which I didn’t know…). I think the correct behaviour of math alignments should avoid using additional commands such as \dm.
We’ll see what Hans and Mikael say.
Best regards: OK
On 2 Nov 2022, at 12:53, Jeong Dal via ntg-context
wrote: Dear Otared,
I think there is an issue with the size of math fonts in \frac when used in math alignments, as it is is shown in the following example.
I confirm what you said.
However, if I use \dm{} instead of \displaystyle as following, then the output is correct.
\placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \dm{\frac{\partial u}{\partial {\bi n}}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula or this (with\type{\displaystyle} added) \placeformula \startformula \startalignedcases \NC - \Delta u \NC = 0 \NC \qquad\text{in }\, \Omega \NR \NC \dm{\frac{\partial u}{\partial {\bi n}}} \NC = V u + \phi \NC \qquad\text{on }\, \partial\Omega. \NR \stopalignedcases \stopformula
In this example, it is OK to use \dm inside of \startformula … \stopformula. I am not sure that it is what Hans and Mikael want.
Thanks,
Best regards,
Dalyoung
I think in this case it is better to use a mathsimplealign instead of a matrix. \definemathsimplealign[pdeproblem][ left={\startmathfenced[cases]}, right=\stopmathfenced, align={1:right,2:left,3:left}, strut=yes, ] \definemathsimplealign[collected][ left={\startmathfenced[sesac]}, right=\stopmathfenced, align={1:right,2:left,3:left}, strut=yes, ] \starttext \placeformula \startformula \startpdeproblem \NC - \Delta u \NC = 0 \NC \qquad\text{in } \Omega \NR \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on } \partial\Omega \NR \stoppdeproblem \stopformula \placeformula \startformula \startcollected \NC - \Delta u \NC = 0 \NC \qquad\text{in } \Omega \NR \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on } \partial\Omega \NR \stopcollected \stopformula \stoptext Best, Mikael
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Hi Mikael, Thanks for your reply. Indeed with your hint the issue disappears. I’ll change my definition… Best regards: Otared
On 2 Nov 2022, at 21:44, Mikael Sundqvist via ntg-context
wrote: […] I think in this case it is better to use a mathsimplealign instead of a matrix. \definemathsimplealign[pdeproblem][ left={\startmathfenced[cases]}, right=\stopmathfenced, align={1:right,2:left,3:left}, strut=yes, ]
\definemathsimplealign[collected][ left={\startmathfenced[sesac]}, right=\stopmathfenced, align={1:right,2:left,3:left}, strut=yes, ]
\starttext
\placeformula \startformula \startpdeproblem \NC - \Delta u \NC = 0 \NC \qquad\text{in } \Omega \NR \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on } \partial\Omega \NR \stoppdeproblem \stopformula
\placeformula \startformula \startcollected \NC - \Delta u \NC = 0 \NC \qquad\text{in } \Omega \NR \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC \qquad\text{on } \partial\Omega \NR \stopcollected \stopformula
\stoptext
Best, Mikael ___________________________________________________________________________________ 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: otared@gmail.com Phone: +33 6 88 26 70 95
participants (3)
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Jeong Dal
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Mikael Sundqvist
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Otared Kavian