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From: Peter Flynn <peter@silmaril.ie>
Newsgroups: comp.text.tex,de.comp.text.pdf,de.comp.text.tex,comp.text.pdf,sci.lang
Subject: Re: (LaTeX) This doesn't work -- \mbox{ First Line \\ Second Line}
Date: Wed, 24 Jul 2024 10:31:34 +0100
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On 19/07/2024 06:31, HenHanna wrote:
> i want 2 lines to stay together... How do i do it?
> 
> This apparently doesn't work.
> 
>              \mbox{ First Line \\
>                     Second Line}

That's because \\ is for prematurely ending a line, not for combining them.

It's also used (differently) in tabular setting to signal the end of a row.

Can you explain what you want to do, with a worked example?
"want 2 lines to stay together" doesn't give enough information.

Peter