Difference between revisions of "Documentation/FAQ/Formula"
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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>. | ||
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==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?== | ==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?== |
Revision as of 13:09, 8 October 2021
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.
- Is Math compatible with the equation editor of Microsoft Word?
- Where can I get a summary of all the math formula syntax?
- How do I change the fonts used in my formula?
- How do I number my equations?
- How do I align my equations at the equality sign?
- I need a symbol that Math does not provide. What can I do?
- How can I get a left bracket without a right bracket?
- How do I change the font of a subformula?
- How do I change the spacing around my formula?
- How do I change the color of a subformula?
- How do I change the size of a subformula?
- The fractions are too large for inline formulas. How can I make them smaller?
- How do I typeset functions, such as max, det, that Math does not know about?
- Can I find all the constructions of Math in the selection window?
- How can I start the equation editor as an individual application rather than within Writer?
- I have written a document containing a formula. I gave it to a friend and when she opened it the user-defined symbols didn't work. What's the matter?
- I have inserted a formula in a HTML document and now I cannot edit it. Why not?
- Why are my formulas jumping up and down on the textline?
- When I enter 3xy the number 3 comes out in italics
- I want to use a binary operator (like union or otimes as a large operator (like int or sum). How can I do that?
- When I enter one of the symbols
- I enter special signs, but get an error message. Why?
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- 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^"+".
I want to use a binary operator (like union or otimes) as a large operator (like int or sum). 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 %union. You can then enter for example
oper%union from i in I A_i
in order to typeset the formula
Note: In build 633 this doesn't work if there is a space before %union (this is a bug in the parser).
Any user-defined symbol can be used as a large operator if it is preceded with oper as in the example.