I wanted to achieve the following:

And I did but my code looks like it was in a major accident:


    \Centerstack[r]{{\text{Something long }} {$\left[\text{Something}_{\text{else}}\right]$}} = & \text{ } \dfrac{\text{Something} * \left( \sum \text{(Something)} + \sum \text{(Something)} \right) } {\text{0,5} * \sum \text{(Something)} + \sum \text{(Something)} } & \\
    + & \text{ } \dfrac{\text{Something} * \left( \sum \text{(Something)} + \sum \text{(Something)} \right) } {\text{0,5} * \sum \text{(Something)} + \sum \text{(Something)} } &


I started using flalign* to get the formula aligned to the left. Then I posted a question here regarding lining up of the two lines on the left of the equation. That is where the stackengine package is coming from. When I had to put something in subscript it wouldn't compile anymore and I started fiddling around with the $$ until it worked. I am using the \text{ } to get some spacing between the equal sign and the formula. The & in the end is used to actually align it to the left.

As I said. It works and produces the desired result. But as I will have a lot of formulas like this one, I wanted to know if there is a more correct or better way to achieve it.


I reduced the code for the MWE to only one line. As it was pointed out to me this was an undue simplification.

  • just use fleqn option on \documentclass and a normal \[..\] it's wrong to use a align for a single line display, a standard \parbox will vertically centre the text, so no packages are needed. – David Carlisle May 15 '15 at 20:29
  • The formula has multiple lines. I reduced it to one for the MWE. I will edit. – Thomas May 15 '15 at 20:32

Note the fl in flalign is for full length, not flush left. the fleqn option is intended to flush left math layouts:

enter image description here


left aligned equation:
\text{Something long}\\
\frac{\text{Something} * ( \sum \text{(Something)} + \sum \text{(Something)}) }
 {\text{0,5} * \sum \text{(Something)} + \sum \text{(Something)} }\\[\jot]
\frac{\text{Something} * ( \sum \text{(Something)} + \sum \text{(Something)}) }
 {\text{0,5} * \sum \text{(Something)} + \sum \text{(Something)} } 

| improve this answer | |
  • you could replace the {c} by @{}c@{} to remove the padding around the left hand array, but it looked a bit tight, so I left it in. – David Carlisle May 15 '15 at 20:44
  • \[ \begin{split} ... \end{split} \] would work equally well here, and is perhaps a bit more logical. – barbara beeton May 15 '15 at 20:51
  • I can't use '\setlength\mathindent{0pt}' because I want to have some other formula centered. – Thomas May 15 '15 at 20:56
  • @Thomas it's a local setting you can set it just for that equation – David Carlisle May 15 '15 at 20:57
  • @barbarabeeton yes – David Carlisle May 15 '15 at 20:57

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