I have, let's say, 5 of the equations spread throughout the document and I want them to be aligned similarly. The equation consist of two parts -- the formula itself and short descriptions (let's say boundaries). Obviously, there can be a lot of text (plus figures between) between any two equations. Can all the equations (and their parts) be aligned in the same way? This is an example:

\cfrac{K_{I}^{2}}{E} & \text{plane stress}\\
\cfrac{(1-\nu^{2})K_{I}^{2}}{E} & \text{plane strain}


One equations with two lines, short comment about them, the part on the right aligned in the same way. However, I can't find a solution to align these throughtout the document (i.e., in multiple equations). It should look something like this


but the boundaries in this case are misaligned and the & operator can't be used. Is there a feature I'm missing or a workaround?

  • 1
    & should be used within align. For one line equation you can simply use \quad to insert some horizontal space. – Sigur Dec 11 '14 at 13:26
  • I don't understand what you want. It doesn't make sense to use alignment in one-lined math expressions; simply use, say, \qquad to add some horizontal space. – Svend Tveskæg Dec 11 '14 at 13:26
  • Welcome to TeX.SX! The coding you suggest is rather non-standard. Can you explain what you are trying to achieve? – Andrew Swann Dec 11 '14 at 13:27
  • Note that you are missing }, but this is not the reason for the problem. – Sigur Dec 11 '14 at 13:31
  • For future questions: It's a good idea to always post a minimal working example when asking (or answering) a question. – Svend Tveskæg Dec 13 '14 at 12:15



\noindent Something\dots
  K_{C} &= \sqrt{EG_{c}} &\qquad &\text{(plane stress)}\\
  \intertext{further description of the equation}
  K_{c} &= \sqrt{\frac{EG_{c}}{1-\nu^{2}}} &&\text{(plane strain)}



  • That´s basically what I want but when used for multiple single-line formulas it does this !link and I would really like the two notes next to equations to be aligned. – Birimaratoa Dec 11 '14 at 13:53
  • @VáclavŠefl See updated answer. – Svend Tveskæg Dec 11 '14 at 13:58
  • On the other hand - this is not very practical if the "further description of the equeations" should be a longer text, possibly including figures. If it is treated as intertext I´d lose a whole bunch of formatting capabilities, is that right? So to rephrase my original question - I have, let´s say 5 of the equations shown above, spread throughout the document and I want them to be aligned similarly. (like each of those above). Can this be done without them being in the same group? – Birimaratoa Dec 11 '14 at 14:18
  • @VáclavŠefl -- you've just expressed an important criterion in your comment. it would be much more visible added to the question; you should be able to edit the question to include it. – barbara beeton Dec 11 '14 at 14:21
  • @VáclavŠefl Next time, please include the entire question the first time you post it! (Now you've asked for something additional twice...) – Svend Tveskæg Dec 11 '14 at 14:30

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.