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*Subject*: **equation without title (status question and issues)**

*From*:**kai brommann <kai_brommann@yahoo.com>***To*: docbook-apps@lists.oasis-open.org*Date*: Sat, 13 May 2006 06:34:59 -0700 (PDT)

hi, using the docbook element equation without title (together with other equations with title in the same document of course) (4.4 XML DTD, latest docbook-xsl-snapshot stylesheets, XHTML output) I am facing the following situation: see: http://lists.oasis-open.org/archives/docbook-apps/200511/msg00125.html for a start then: http://www.oasis-open.org/archives/docbook-apps/200602/msg00118.html 'I believe that's the intended semantic of equation without a title. But the stylesheets might not yet have caught up with that understanding.' (date 19.2.2006) and finally http://www.docbook.org/tdg/en/html/equation.html 'Processing systems that number equations or build a table of equations at the beginning of a document may have difficulty correctly formatting documents that contain both Equations with Titles and Equations without Titles. You are advised to use InformalEquation for equations without titles. In some future version of DocBook, probably V5.0, even though the change has not yet been announced, the Title on Equation will be required.' (in this document this has not been the state half a year ago I can swear) well, in general I can fully accept the decision to move away from equation without title towards informalequation (then DBLaTeX must be changed again accordingly, no problem). But then there a numbering should be an option (some equations can be completely informal, and some have also no title but a nmuber). But at the moment in 5.0 this is not planned?! ------------------- so I understand we are in the middle of a something in this regard, but now here I nevertheless mention the issues I encountered using equation without title and XHTML output: 1) as is folklore: they appeaer in the list of equations as empty lines 2) on the same line as equation contents now there appears s.th. like: x + y = z Equation 11.2. I want this 'Equation' to disappear, instead I need simply (11.2) pay attention to the fact that I have other equations with title in the same document, so the workaround <l:context name="title"> <l:template name="equation" text="(%n)"/> </l:context> would break them. A possible solution would make this text a configure option (I want empty, some want 'Equ.). It is important to make it distinguishable from other equations with title, since they may get the same number, see the item 3) below! And yes, this collision may happen frequently in mathematical books, it is common usage. 3) the equations without title would need a separate counter, at the moment they start from the counter of the equations with title, and then they don't increment (I have three subsequent equations without title, they all get the same number). 4) when linking to an equation without title (by xref), again the (empty) title is tried to be displayed, like: (Equation 11.2, “”) well, this should be repaired in a hardcoded fashion, it is similar to problem 1). And again when linking I want the text be configurable, like described in 2) (in fact of course it should be the same text object). When the text is empty, I can live with an unnecessary space used since the text could have been non-empty... --------------- so what will the future bring? will the issues be fixed, and besides the transition to informalequation will be overthought, or when will (probably in DocBook5.0) the informalequation get an (optional) numbering? thanx for your patience:-) kbr __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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