Re: nath: \wall and \return doesn't work?

[Giuseppe Bilotta <gip.bilotta@iol.it>]

Thursday, October 14, 2004 Christopher Creutzig wrote:

> Salvete,

> \usemodule[nath]
> \starttext
> \startformula
>    F(\beta, E_{min}, E_{max}, m) = \wall\{0,\infty,-\infty\}
>    \return
>    \cup
> \left\{\left.s\,\beta^e\sum_{i=0}^{m}a_i\beta^{-i}\right\vert
>    s\in\{-1,1\}, 0\leq a_i<\beta, e\in\integers, E_{min}\leq e\leq
>    E_{max}\right\}.
> \stopformula
> \stoptext

> I thought the \return were to go to the horizontal position of the
> \wall, in the next line?  For me, both lines are flush left.

> pdftex 1.20a, ConTeXt 2004.10.07, t-nath.tex 2003.12.08, with the
> patches I sent to this list.

You are returning too soon. Lines should be ended by \\, not
\return, unless they are the last indented line; your snipped
should rather go:

\startformula
   F(\beta, E_{min}, E_{max}, m) = \wall\{0,\infty,-\infty\} \\
   \cup \left\{\left.s\,\beta^e\sum_{i=0}^{m}a_i\beta^{-i}\right\vert
   s\in\{-1,1\}, 0\leq a_i<\beta, e\in\integers, E_{min}\leq e\leq
   E_{max}\right\}.
   \return
\stopformula


Or something like this (you can also split the part between
\left\{ ... \right\}, i.e. the second set; delimiters should
get enlarged correctly).

-- 
Giuseppe "Oblomov" Bilotta