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

\section{This is the third section}
$a^{2}+b^{2}=c^{2}$\label{formula:1}
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?

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  • 1
    How about this answer? Or just a plain \hyperref and \hypertarget? – user121799 Feb 27 '19 at 3:43
  • @marmot The answer is exactly what I want! Thanks! – Thinkpad Feb 27 '19 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 '19 at 3:58
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    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 '19 at 4:16

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