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On Sun, 2017-06-18 at 13:00 +0200, Hans Hagen wrote:
On 6/17/2017 3:48 PM, Jeong Dal wrote:
Dear Hans,
I updated ConTeXt beta today and run your sample for long formula. It works nice and it is the feature what many math people want I think. Thank you for your concern.
One thing that I’d like say is that a new line in the splitted long formula usually starts with operations in many math books. But, in the ourput of your example, every line ends with ‘+’ sign and begin a new line with a ‘number’.
Would you please check it once more?
this is how tex works: just look at inline math
Let me quote the TeXbook (page 195): »Although formulas within a paragraph always break after binary operations and relations, displayed formulas always break before binary operations and relations.« On the other hand, right above this paragraph, it says: »It's quite an art to decide how to break long displayed formulas into several lines; TeX never attempts to break them, because no set of rules is really adequate.«
i played with it a bit but had to adapt the engine for a bit more control (stepwise the matyh machinery is opened up i.e. hard coded steps become configureable)
anyway, the question is not implementing but control: it's not default tex behaviour so it has to be turned on (and then after a while we forget that it can be turned on i guess)
(no clue what keyword to use for controling it)
Hans
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