At 14:05 18/09/2003 +0200, you wrote:
In the end it always end up on the totally different views on displayed material that you and TeX have. We discussed this for the "autoindent" stuff, remember? You always consider displays a "separate entity" from the surrounding text, whereas TeX allows it to be separate or not (depending on \pars around it). TeX approach is both more flexible and more "correct".
hm, in this case i more tend to look at the grayness of a page and then decide on a space correction like this; (which is why i also have a threshold)
Let's say for example that we're discussing Einstein's equation. The following three examples have different logical meaning and should therefore be formatted appropriately differently:
=== EXAMPLE 1: Display part of the paragraph ===
Einstein's equation $$E=mc^2$$ ties energy and mass of a body to etc
=== EXAMPLE 2: Display part of the previous paragraph but not of the following one ===
A relation between mass and energy of a body is expressed by Einstein's equation $$E=mc^2.$$
We shall see further on that etc
=== EXAMPLE 3: Display part of the following paragraph but not of the previous one ===
some text etc.
$$E=mc^2$$ is Einstein equation and it ties energy and mass of a body etc.
================================================
In Ex1, you want the displayed equation to have as little spacing as possible both above and below, and the following text should NOT start with an indent.
In Ex2, you want the displayed equation to be as close as possible to the previous text, and to have some spacing below, to ensure that it's clearly distinguishable from the next paragraph, which is a new entity. Also, the following text should start with an indent.
yes, but a very short last line will make uit look quite ugly, i.e. there is already quite some space there; i'd rather tend to have a different threshold then (say 4em instead of 2em, which boils down to: some long text formula part of paragraph some text formula part of paragraph some long text formula not part of paragraph some text formula not part of paragraph so, to let the horizontal distance between end of line text and begin of text also play a role. text $$math$$ text
and
text\par $$math$$\par text
are NOT the same thing and should be treated differently!
i know, but that's on the agenda; and even then, i'll add options to control the look and feel -) (in practice i think that it also depends on the taste and specific formula, say x=2 vs x=sqrt(2) may demand their own spacing rules) Hans ------------------------------------------------------------------------- Hans Hagen | PRAGMA ADE | pragma@wxs.nl Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com ------------------------------------------------------------------------- information: http://www.pragma-ade.com/roadmap.pdf documentation: http://www.pragma-ade.com/showcase.pdf -------------------------------------------------------------------------