I tried to label a specific inline math formula in the paragraph. For a simple example,

\section{This is the third section}
Formula \ref{formula:1} is useful!

However, I found that \ref{formula:1} corresponds to the number of the section.

So the output by the above codes is 'Formula 3 is useful!' But What I want to label is $a^{2}+b^{2}=c^{2}$, and what I want to get is 'Formula 1 is useful!'. How can I realize it?

  • 1
    How about this answer? Or just a plain \hyperref and \hypertarget?
    – user121799
    Feb 27, 2019 at 3:43
  • @marmot The answer is exactly what I want! Thanks!
    – Thinkpad
    Feb 27, 2019 at 3:54
  • @Zarko Sorry for not saying clearly before, I mean neither \tag nor \eqno works in math mode. So I'm not able to use special tag for formula designation with them.
    – Thinkpad
    Feb 27, 2019 at 3:58
  • 1
    Glad to hear! What should we do, then? AFAIK the technically correct way is to close your question as a duplicate of the other one.
    – user121799
    Feb 27, 2019 at 4:16


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