**Simple, Inline Equations**

You can do a simple inline equation by using `$an equation here$`

.

For example, you might do

```
$\lim\limits_{n \to \infty} \frac{1}{2^n} i\bar z$
```

which, if we put a little fake text around it, gives

**Numbered, Centered Equations**

When writing papers or other documents, it is sometimes preferable to have your equations centered and numbered, as opposed to in-line. Then, use the `\begin{equation}`

and `\end{equation}`

commands.

For example, if we use the code

```
\begin{equation}
\lim\limits_{n \to \infty} \frac{1}{2^n} i\bar z
\end{equation}
```

And add a little text around it, we get

You can remove the numbering of the equation by using `\begin{equation*}`

and `\end{equation*}`

.

For example, if we use the code

```
\begin{equation*}
\lim\limits_{n \to \infty} \frac{1}{2^n} i\bar z
\end{equation*}
```

and add a little text around it, we get

(though it should be noted you have to use the `amsmath`

package for this).