Difference between revisions of "Documentation/FAQ/Formula"

From Apache OpenOffice Wiki
Jump to: navigation, search
(When I enter one of the symbols #, & ,|,^ or _ I get an unexpected result or an error message. How can I use these symbols?)
m (I want to use a binary operator (like union or otimes) as a large operator (like int or sum). How can I do that?)
Line 44: Line 44:
  
 
This answer applies to a lot of other symbols as well. Some operators, such as +, are unary, that is there only has to be an expression to the right of the symbol. To typeset x<SUP>+</SUP> you can enter<font color="brown">''' x^{+{}}<'''</font> or, of course, <font color="brown">'''x^"+"'''</font>.
 
This answer applies to a lot of other symbols as well. Some operators, such as +, are unary, that is there only has to be an expression to the right of the symbol. To typeset x<SUP>+</SUP> you can enter<font color="brown">''' x^{+{}}<'''</font> or, of course, <font color="brown">'''x^"+"'''</font>.
 
==I want to use a binary operator (like <font color="brown">'''union'''</font> or<font color="brown"> '''otimes'''</font>) as a large operator (like <font color="brown">'''int'''</font> or <font color="brown">'''sum'''</font>). How can I do that?==
 
 
You have to define the symbol you want to use as a user-defined
 
symbol first. See <A HREF="012.html">FAQ #012</A> for instructions;
 
most of the symbols used by ''Math'' are part of the StarMath
 
font.
 
 
Let's say you have defined the union symbol as the user-defined
 
symbol <font color="brown">'''%union'''</font>. You can then enter for example
 
 
<pre>oper%union from i in I A_i</pre>
 
 
in order to typeset the formula
 
 
[[Image:006a.gif]]
 
 
<em>Note</em>: In build 633 this doesn't work if there is a space before
 
<font color="brown">'''%union'''</font> (this is a bug in the parser).
 
<P>Any user-defined symbol can be used as a large operator if it is
 
preceded with<font color="brown">''' oper '''</font>as in the example.</P>
 
  
  
 
[[Category: Documentation/FAQ]]
 
[[Category: Documentation/FAQ]]
 
[[Category:User FAQ]]
 
[[Category:User FAQ]]

Revision as of 13:09, 8 October 2021

doc OOo


Documentation note.png A useful first resource is the OpenOffice Math Syntax Reference.

Search the FAQs:

This list is ordered by popularity. The most popular FAQs are at the top. But also have a look at the bottom to find any new entries.

Below the list you can find some more FAQs that have special characters in the title.

Add a new FAQ entry

Instructions

  • Do not ask questions here, but give answers.
  • If you have a question to ask, go to the User Forum.
  • Replace <FAQ_TITLE> part in the input box above by the title you would like to give the FAQ item and click Add New FAQ

I enter x^* to typeset x*, but get an error message. Why?

The problem is that * is a binary operator, that is there has to be an expression on both sides of the symbol.

You either have to enter the expression x^{{}*{}} to avoid the error message, or you could type x^"*" as well, where the quotes will interpret the asterisk not as a binary operator but as a "standalone" symbol.

If you use this construction a lot you might want to define the symbol as an user defined symbol. See I need a symbol that Math does not provide. What can I do?. If you have defined the * as an user defined symbol, say %ast, you can enter x^%ast.

This answer applies to a lot of other symbols as well. Some operators, such as +, are unary, that is there only has to be an expression to the right of the symbol. To typeset x+ you can enter x^{+{}}< or, of course, x^"+".

Personal tools