$\displaystyle lim_{x \to 2} f(x) $
Some of these still surprise me by working:
[tex]\mathit{ some .maths }[/tex] $\displaystyle \mathit{ some .maths}$
[tex]\textsl{ some text }[/tex] $\displaystyle \textsl{ some.maths }$
[tex]\textit{ some text }[/tex] $\displaystyle \textit{ some text }$
[tex]\mathbf{ some .maths }[/tex] $\displaystyle \mathbf{ some .maths }$
[tex]\bold{ some .maths }[/tex] $\displaystyle \bold{ some .maths }$
[tex]\textbf{ some text }[/tex] $\displaystyle \textbf{ some text }$
[tex]\mathrm{ some .maths }[/tex] $\displaystyle \mathrm{ some .maths }$
[tex]\textrm{ some text }[/tex] $\displaystyle \textrm{ some text }$
[tex]\text{ some text }[/tex] $\displaystyle \text{ some text }$
[tex]\mathfrak{ some .maths }[/tex] $\displaystyle \mathfrak{ some .maths }$
[tex]\frak{ some .maths }[/tex] $\displaystyle \frak{ some .maths }$
[tex]\tt{ some .maths }[/tex] $\displaystyle \tt{ some .maths }$
[tex]\texttt{ some text }[/tex] $\displaystyle \texttt{ some text }$
[tex]\texttt{\sl{some text }}[/tex] $\displaystyle \texttt{\sl{ some text }}$
[tex]\mathcal{ SOME .MATHS }[/tex] $\displaystyle \mathcal{ SOME .MATHS }$
CB