[NTG-context] Re: Math alignment issue

Otared Kavian Wed, 17 Jan 2024 01:38:38 -0800

Hi Mikael,

Thank you for your reply. When I typeset the example you sent me, that is

%begin 240117-1-bis.tex

\definemathsimplealign[alignedcases]

[left={\startmathfenced[cases]},

right=\stopmathfenced,

align={1:right,2:left,3:left},

strut=yes]

\setupformula

[location=left]

\starttext

\samplefile{knuthmath}

\startplaceformula

\startformula

\startalignedcases

\NC u'(t) - \nabla \cdot (a(x)\nabla u) + Vu \NC = 0 \NC \mtext{bla bla bla} \NR

\NC u(x,0) \NC = u_0(x) \NC \mtext{bla bla} \NR

\NC u(t,\sigma) \NC = 0 \NC \mtext{bla bla bla bla} \NR

\stopalignedcases

\stopformula

\stopplaceformula

\samplefile{knuthmath}

\startplaceformula

\startformula

\startalign[location=packed,n=2,m=2,align={1:right,2:left},fences=cases]

\NC u'(t) - \nabla \cdot (a(x)\nabla u) + Vu \NC = 0 \NC \NC \mtext{bla bla bla} \NR

\NC u(x,0) \NC = u_0(x) \NC \NC \mtext{bla bla} \NR

\NC u(t,\sigma) \NC = 0 \NC \NC \mtext{bla bla bla bla} \NR

\stopalign

\stopformula

\stopplaceformula

\samplefile{knuthmath}

\stoptext

% end 240117-1-bis.tex

I get something different than the PDF you sent me: the formulas run into the text just above them, as you can see in the attached PDF. I am using ConTeXt LMTX version 2024.01.08 on MacOS 11.7.10. I don’t see what is wrong with my installation…

Best regards: Otared

240117-1-bis.pdf
Description: Adobe PDF document

On 17 Jan 2024, at 09:47, Mikael Sundqvist <mic...@gmail.com> wrote:

Hi Otared,

I'm not sure how you get that code, since you do not show the source.
From last upload, there is location=packed for align, so now that can
be used "inline" in formulas. See attached. I hope it helps.

Best, Mikael

On Tue, Jan 16, 2024 at 9:41 PM Otared Kavian <ota...@gmail.com> wrote:

Hi Mickael,

I wish you a happy new year !
I apologize for writing you outside the mailing list: this is du eto the fact that I am attaching two screenshots in order to show the problem I encounter, and these documents cannot go through the mailing list.

In a document written a year and half ago I have the following definition:

\definemathmatrix[alignedcases]
[align={right,left,left},
distance=3pt,
left={\left\{},
right={\right.},
style=\displaystyle]
in order to typeset multi-lines formulas regrouped with a left brace. This is analogous to math-cases, but I need three columns instead of two.

When the alignment in maths changed I changed the above definition to the following:

\definemathsimplealign[alignedcases]
[left={\startmathfenced[cases]},
right=\stopmathfenced,
align={1:right,2:left,3:left},
strut=yes]

The result of the typesetting with LMTX in 2022 is shown in the attached document « math-align-2022.pdf »,

But when the same documentis typeset with the latest version from 2024-01-08, it does not show the formulas correctly, as one can see in the attached screenshot « math-align-2024-01-08.pdf ».

I cannot reproduce the issue on a short document, but since there have been some changes in the way the math alignment is treated now, I wonder whether you can help me how to change my definitions accordingly.
In order to let th elist be informed, once the issue may be solved without the screenshots, I may post a message there.

Thanks in advance, and best regards: Otared

<240117-1.mkxl><240117-1.pdf>

Otared Kavian

e-mail: ota...@gmail.com

Phone: +33 6 88 26 70 95

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[NTG-context] Re: Math alignment issue

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