Difference between revisions of "Documentation/FAQ/Formula/How do I align my equations at the equality sign?"

From Apache OpenOffice Wiki
Jump to: navigation, search
(New page: {{DISPLAYTITLE: How do I align my equations at the equality sign?}} <section begin=question/> '''How do I align my equations at the equality sign?''' <section end=question/> <section beg...)
 
m
Line 25: Line 25:
 
spacing of the matrix:
 
spacing of the matrix:
  
 
+
#Select '''Format-Spacing'''
*Select '''Format-Spacing'''
+
#Click ''''Category'''' and choose'''Matrixes''' in the pop-up menu.
*Click ''''Category'''' and choose'''Matrixes''' in the pop-up menu.
+
#Now enter<font color="brown">''' 0% '''</font>under ''''Column spacing''''.
*Now enter<font color="brown">''' 0% '''</font>under ''''Column spacing''''.
+
  
  

Revision as of 09:49, 24 February 2009


How do I align my equations at the equality sign?


Currently Math does not have an alignment construction (track here). Instead you can use a matrix.

For example to typeset the equation 005a.gif

you should enter the following:

matrix{
   alignr x+y # {}={} # alignl 2 ##
   alignr x   # {}={} # alignl 2-y
}

The empty braces around = are necessary because = is a binary operator and thus needs an expression on each side.

You can reduce the spacing around = if you change the inter-column spacing of the matrix:

  1. Select Format-Spacing
  2. Click 'Category' and chooseMatrixes in the pop-up menu.
  3. Now enter 0% under 'Column spacing'.


Here is another example using a different solution:

To typeset the equation

005b.gif

the trick is to use phantom as follows:

""3(x+4)-2(x-1)=3 x+12-(2 x-2) newline
""phantom {3(x+4)-2(x-1)}=3 x+12-2 x+2 newline
""phantom {3(x+4)-2(x-1)}=x+14

The effect of the empty quotation marks is to left justify the line - a line starting with text (even an empty text) will always be left justified.

You can replace "" with alignl.


Personal tools