```
\begin{equation*}
\theta({P,\bar{Cl}}) =
\begin{cases}
S(P,\widehat{Cl}) + (S(P,\widehat{Cl}) \times ((\bar{R}-\widehat{R})/\bar{R})) & \widehat{Cl} \textless \bar{Cl} \\
S(P,\widehat{Cl}) - (S(P,\widehat{Cl}) \times ((\widehat{R}-\bar{R})/\bar{R})) & \widehat{Cl} \textgreater \bar{Cl}
\end{cases}
\label(eq: state}
\end{equation*}
```

How can I make it look more beautiful and legible?

I would like to push the division sign below so that it is more legible

any ideas are welcome

## Best Answer

First of all, I would use

`displaystyle`

fractions. Next I would replace the non-extensible`\bar`

with`\widebar`

, borrowed from the`mathx`

(it's in the`mathabx`

bundle, without loading the`mathabx`

package since it changes many symbols.As I'm changing symbols, I also replaced`\widehat`

with mathx's version, with I named`varwidehat`

to not interfere with defaults. Finally I changed`Cl`

into a math operator (`Cl`

), as I suspect it is so. For the moment it looks like the product of the two variables C and l. If I'm wrong, all you have to do is replacing back`\Cl`

with`Cl`

.To prevent having too large vertical spacing with respect to the surrounding text, due to the fractions, I kill the first line fraction height with a

`\smash[t]{…}`

command, and the second line fraction depth with`\smash[b]{…}`

.