2019=E5=B9=B47=E6=9C=883=E6=97=A5(=E6=B0=B4) 15:42 Henri Me= nke <henrimenke@gmail.com>= ;:

On 3/07/19 6:00 PM, Atsuhito Kohda wrote:
> I've used LaTeX quite a long time but recently I begin to use ConT= eXt too.
> So I'm very sorry if the following is well-known issue.
>
> I find an example of \pmatrix in p.21 of "ConTeXt Mark IV an excu= rsion"
> (ma-cb-en.pdf).=C2=A0 And I notice it is defined in
> /usr/share/texmf/tex/context/base/mkiv/math-pln.mkiv (in Debian).
> But it seems \bmatrix, \vmatrix are not defined yet.
> Is there any reason why they are not defined?
> Similar commands or environments \begin{bmatrix}...\end{bmatrix},
> \begin{vmatrix}...\end{vmatrix} are very often used in mathematical > LaTeX documents.
> It is very useful if we can use \bmatrix and \vmatrix in ConTeXt
> documents, so please add
> \unexpanded\def\bmatrix#1%
>=C2=A0 =C2=A0{\left[\matrix{#1}\right]}
> \unexpanded\def\vmatrix#1%
>=C2=A0 =C2=A0{\left|\matrix{#1}\right|}
> in math-pln.mkiv or somewhere.

Ignore my other message, this is even better:

\definemathmatrix
=C2=A0 [pmatrix]
=C2=A0 [matrix:parentheses]
=C2=A0 [simplecommand=3Dpmatrix]

\definemathmatrix
=C2=A0 [bmatrix]
=C2=A0 [matrix:brackets]
=C2=A0 [simplecommand=3Dbmatrix]

\definemathmatrix
=C2=A0 [vmatrix]
=C2=A0 [matrix:bars]
=C2=A0 [simplecommand=3Dvmatrix]

\definemathmatrix
=C2=A0 [Vmatrix]
=C2=A0 [left=3D{\left\lVert\mskip\thinmuskip},
=C2=A0 =C2=A0right=3D{\mskip\thinmuskip\right\rVert},
=C2=A0 =C2=A0align=3Dmiddle,
=C2=A0 =C2=A0simplecommand=3DVmatrix]

\starttext

\startformula
=C2=A0 =C2=A0 \startpmatrix
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC A \NC B \NR
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC C \NC D \NR
=C2=A0 =C2=A0 \stoppmatrix
=C2=A0 =C2=A0 \quad
=C2=A0 =C2=A0 \startbmatrix
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC A \NC B \NR
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC C \NC D \NR
=C2=A0 =C2=A0 \stopbmatrix
=C2=A0 =C2=A0 \quad
=C2=A0 =C2=A0 \startvmatrix
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC A \NC B \NR
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC C \NC D \NR
=C2=A0 =C2=A0 \stopvmatrix
=C2=A0 =C2=A0 \quad
=C2=A0 =C2=A0 \startVmatrix
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC A \NC B \NR
=C2=A0 =C2=A0 =C2=A0 =C2=A0 \NC C \NC D \NR
=C2=A0 =C2=A0 \stopVmatrix
\stopformula

\startformula
=C2=A0 =C2=A0 \pmatrix{A, B; C, D}
=C2=A0 =C2=A0 \quad
=C2=A0 =C2=A0 \bmatrix{A, B; C, D}
=C2=A0 =C2=A0 \quad
=C2=A0 =C2=A0 \vmatrix{A, B; C, D}
=C2=A0 =C2=A0 \quad
=C2=A0 =C2=A0 \Vmatrix{A, B; C, D}
\stopformula

\stoptext

>
> By the way, I think it is critical to set
> \setupmathematics[ampersand=3Dnormal]
> to use \matrix above but I can't find this setting in ma-cb-en.pdf=
> It is great if this is added in=C2=A0 ma-cb-en.pdf
>
>
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