On mercredi, jan 29, 2003, at 19:06 Europe/Paris, Mikael Persson wrote:
Hi everyone!Hi,
I appologise if this question is answered before.
I was trying to do some math in ConTeXt today, but failed. What I wanted
to do was something similar to the \begin{cases}\end{cases} thing in
LaTeX (amsmath?). For the non-LaTeX-math-users, its something like this:
f(x)=
\begin{cases}
0 & \text{if}\ x<0\\
1 & \text{if}\ x\geq 0
\end{cases}
and one gets something like this:
/ 0 if x<0
f(x) = <
\ 1 if x>=0
I didn't find any commands that did this so I searched alittle in the
maillist archive and didn't find any solution to it.
Are the amsmath commands available in one or another way or are the
implemented somehow?
I found newmat and m-math but I didn't find a solution in either of
them.
Are there any docs about how to type math in ConTeXt? I am also
interested in things that looks like eqnarray and other environments in
LaTeX's amsmath...
Thanks in advance, Micke P
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You can use the Plain TeX structures \cases and \eqalign. here is an example:
\starttext
Let the function $f$ be defined by
\placeformula[-]
$$f(x) := \cases{
\eqalign{
& 1 \cr
& 2 \cr
& 3 \cr
}\qquad
\eqalign{
&\hbox{if }\, x<-1 \cr
&\hbox{if }\, -1\leq x \leq +2 \cr
&\hbox{if }\, x >+ 2 \cr
}\cr
}$$
\stoptext
Regards: OK
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