Hi Henri, Thanks for your suggestions, they are very instructive. However, my request is not a smart way of displaying matrices but to know why \bmatrix and \vmatrix are not provided in core part of ConTeXt although \pmatrix is provided already in math-pln.mkiv
About matrices, I first found commands in your first email in http://dl.contextgarden.net/myway/context-latex-math.pdf (like \startpmatrix \NC A\NC B\NR \NC C\NC D\NR\stoppmatrix) and then browsing ma-cb-en.pdf I noticed another command like \pmatrix{A&B\cr C&D\cr}. Now by your email, I know a command \pmatrix{A, B; C, D} One might say ConTeXt is flexible but I've an impression that ConTeXt is in a state of confusion/disorder. I think it is better if a standard command is provided by core ConTeXt or by a module etc. Or is it ConTeXt way that each user defines his/her own commands in setup area and uses them in text area? I'm afraid consistency and/or portability is lost in such scenario. BTW, I constantly convert Beamer documents into ConTeXt's simpleslide documents recently and it is very convenient if I can use \pmatrix{a&b\cr c&d\cr} style because it is similar to LaTeX documents. 2019年7月3日(水) 15:42 Henri Menke <henrime...@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 ConTeXt > 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 excursion" > > (ma-cb-en.pdf). 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% > > {\left[\matrix{#1}\right]} > > \unexpanded\def\vmatrix#1% > > {\left|\matrix{#1}\right|} > > in math-pln.mkiv or somewhere. > > Ignore my other message, this is even better: > > \definemathmatrix > [pmatrix] > [matrix:parentheses] > [simplecommand=pmatrix] > > \definemathmatrix > [bmatrix] > [matrix:brackets] > [simplecommand=bmatrix] > > \definemathmatrix > [vmatrix] > [matrix:bars] > [simplecommand=vmatrix] > > \definemathmatrix > [Vmatrix] > [left={\left\lVert\mskip\thinmuskip}, > right={\mskip\thinmuskip\right\rVert}, > align=middle, > simplecommand=Vmatrix] > > \starttext > > \startformula > \startpmatrix > \NC A \NC B \NR > \NC C \NC D \NR > \stoppmatrix > \quad > \startbmatrix > \NC A \NC B \NR > \NC C \NC D \NR > \stopbmatrix > \quad > \startvmatrix > \NC A \NC B \NR > \NC C \NC D \NR > \stopvmatrix > \quad > \startVmatrix > \NC A \NC B \NR > \NC C \NC D \NR > \stopVmatrix > \stopformula > > \startformula > \pmatrix{A, B; C, D} > \quad > \bmatrix{A, B; C, D} > \quad > \vmatrix{A, B; C, D} > \quad > \Vmatrix{A, B; C, D} > \stopformula > > \stoptext > > > > > By the way, I think it is critical to set > > \setupmathematics[ampersand=normal] > > to use \matrix above but I can't find this setting in ma-cb-en.pdf > > It is great if this is added in ma-cb-en.pdf > > > > > > > ___________________________________________________________________________________ > > 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://context.aanhet.net > > archive : https://bitbucket.org/phg/context-mirror/commits/ > > wiki : http://contextgarden.net > > > ___________________________________________________________________________________ > > > > > ___________________________________________________________________________________ > 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://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : http://contextgarden.net > > ___________________________________________________________________________________ >
___________________________________________________________________________________ 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://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
