Issue 7664 - I would appreciate more formula formatting possibilities
Summary: I would appreciate more formula formatting possibilities
Status: CLOSED NOT_AN_OOO_ISSUE
Alias: None
Product: Math
Classification: Application
Component: ui (show other issues)
Version: OOo 1.0.0
Hardware: Other Other OS
: P3 Trivial with 1 vote (vote)
Target Milestone: ---
Assignee: AOO issues mailing list
QA Contact:
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2002-09-11 15:21 UTC by palecekj
Modified: 2019-10-06 16:51 UTC (History)
3 users (show)

See Also:
Issue Type: ENHANCEMENT
Latest Confirmation in: ---
Developer Difficulty: ---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this issue.
Description palecekj 2002-09-11 15:21:38 UTC 
In formula editor, I miss a function for creating formulas like this

   U        {2*k}
  k in setZ

which should mean union of one-element sets (in this example, all even numbers).
The same thing should be possible for intersection and in expression symbolics
( /\, \/).
Also, i'd like to simplify the notation for derivatives ("d"x over "d"y is quite
complicated) and also f' (with apostrophy in the upper-right corner of f).
Comment 1 henrikjust 2002-11-03 22:04:14 UTC 
It is possible to define more large operators using user defined
symbols. Please have a look at
http://documentation.openoffice.org/user_faq/formula/006.html

But I agree that the examples you mention are so common, that they
should be predefined.
I would propose adding the following keywords.

bigunion, bigintersection, bigand (or bigwedge), bigor (or bigvee),
bigotimes, bigoplus, bigodot.

They should be "large operator" versions of the existing binary
operators, so the example

 U        {2*k}
k in setZ

would be written
bigunion from {k in setZ} \{ 2*k \}
Comment 2 stefan.baltzer 2003-06-04 14:17:55 UTC 
Reassigned to Bettina.
Comment 3 thomas.lange 2003-06-04 14:36:50 UTC 
It already functions:
  oper %SIGMA from {k in setZ} {2*k}
If you like to have a union character get displayed the one thing you
need to do is use "Tools / Catalog - Edit" to define a new
user-defined character named UNION that is set to display a non italic
union symbol from the OpenSmbol/StarSymbol font.
After that
  oper %UNION from {k in setZ} {2*k}
will display exactly what you want.


TL->BH: What could probably be done is to modify the syntax of the
"oper" command to allow for the use of the characters/operators that
already have a name. The functionality will be the same. But maybe it
is somewhat more convenient...
Comment 4 Rainer Bielefeld 2003-07-18 16:33:33 UTC 
I have not enough mathematical background to follow this discussion.

Jiri, Henrik and Thomas, can you please make new issues for each of
Jiri's wishes with detailled instructions how the results should look?
For example, a user-defined solution with suggestion how to be
included into the stadard would be helpful.

I do not see any chance that this "formua editor should be more
comfortabe issue" has any chance to get STARTED.

So if I will not see any further action as votes, attachments or
confirmations in this issue, I will have to close this issue
2003-08-31 as WFM.

Rainer
Comment 5 Rainer Bielefeld 2003-09-16 07:30:51 UTC 
I will not close this issue, but only leave it in the actual
"enhancement black hole".

Removed myself from CC

Rainer
Comment 6 thomas.lange 2006-09-25 11:27:58 UTC 
.
Comment 7 oooforum (fr) 2019-10-06 12:34:30 UTC 
In comment 3, OP have a solution.
No news from him/her.