> On 7 Jul 2015, at 20:17, Wolfgang Schuster <schuster.wolfg...@gmail.com>
> wrote:
> You can set the alignment for each column in a matrix with the align key.
FYI, the document amshelp.pdf says that AMS-LaTeX environments align, align*,
and aligned, can have multiple alignments, and gives this example:
\begin{align*}
K &\approx G * H& i&= j+k& B &\subset C\\
H &\approx A_{0}*B_{0}& i’&= j’+k’& C &= D\cap E\\
G &\approx \coprod_{\alpha\in A} L_{\alpha}& i’’&=j’’+k’’& A &= D \cup E
\end{align*}
which is typeset so that 'K &\approx G * H’ is one equation aligned on the ‘&’
with the others below, followed by 'i&= j+k’ in the next column.
So the ampersands have multiple functions here, it seems: alignment and
separating columns.
Translating into ConTeXt, one might have (pseudocode):
\startformula
\startalign
\NC K \NA \approx G * H \NC i\NA= j+k \NC B \NA \subset C \NR
\NC H \NA \approx A_{0}*B_{0} \NC i’\NA= j’+k’ \NC C \NA = D\cap E\NR
\NC G \NA \approx \coprod_{\alpha\in A} L_{\alpha}
\NC i’’\NA =j’’+k’’ \NC A \NA = D \cup E \NR
\stopalign
\stopformula
where I have introduce a symbol \NA for alignment.
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