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Basically, I have two equations that I wanted to use align to number, but I also wanted to put the word 'and' in between the lines. Here's what I have so far

\begin{document} \usepackage{amsmath} \begin{align} \mathrm{distance} &= \mathrm{speed} \times \mathrm{time}\\ &\text{and}\\ y &= \mathrm{m}x + \mathrm{c} \end{align} \end{document}

This gives me the equations in the way that I want them but it numbers the line that says 'and'. Hopefully, if this made any sense, someone can help me with this.

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    There is \nonumber/\notag but here, typographically speaking, you should use \intertext{and} or \shortintertext{and} from the mathtools package instead (you can slip a \centering in there). Commented Apr 28, 2013 at 18:27
  • Ah okay, cool, thanks. Looking at it now, I'm fairly sure I've used this before, I knew it wasn't difficult. Thanks again! Commented Apr 28, 2013 at 18:31

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enter image description here

\documentclass[preview,border=12pt]{standalone}% please change to your document class \usepackage{mathtools} \usepackage{amsthm} \newtheorem{mydef}{Definition} \begin{document} \begin{mydef} \begin{align} \text{distance} &= \text{speed} \times \text{time}\\ \intertext{and} y &= \mathrm{m}x + \mathrm{c} \end{align} \end{mydef} \begin{mydef} \begin{align} \mathrm{distance} &= \mathrm{speed} \times \mathrm{time}\\ \shortintertext{and} y &= \mathrm{m}x + \mathrm{c} \end{align} \end{mydef} \end{document}

Remarks:

Compare the results in the first and the second theorems carefully.

  • Use \text when you want its content to be affected by the surrounding font. For example, if \text is used inside a theorem environment, the surrounding font is italic so the contents of \text will be in italic as well.

  • Use \mathrm when you don't want its contents to be affected by the surrounding font.

  • Use \intertext for getting normal spacing but \shortintertext for shorter one.
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  • Oh right, okay, cheers. I'm kinda just getting used to this trying to write my first lab report for uni with it. This is really great, I didn't really understand what \mathrm was I was just using it. Thanks again, really helpful! Commented Apr 28, 2013 at 18:51
  • Use \centering inside the intertext commands for a more readable centred layout, e.g., \shortintertext{\centering and}. Commented Feb 21, 2019 at 16:10
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\documentclass{article} \usepackage{amsmath} \begin{document} \begin{align} \mathrm{distance} &= \mathrm{speed} \times \mathrm{time}\\ \noalign{\text{and}} y &= \mathrm{m}x + \mathrm{c} \end{align} \end{document}

enter image description here

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  • Oh wow, that was so simple. I feel pretty stupid now. I knew there would be some simple fix! Thank you! Commented Apr 28, 2013 at 18:27

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