Difference between revisions of "Documentation/FAQ/Formula/How do I align my equations at the equality sign?"
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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
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:
- Select Format-Spacing
- Click 'Category' and chooseMatrixes in the pop-up menu.
- Now enter 0% under 'Column spacing'.
Here is another example using a different solution:
To typeset the equation
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.