Let's say I have a text block like this:

Within the field of texture analysis, a number of categories of

methods exist, and even if we restrict ourselves to statistical

methods, a large number of methods are available.`\begin{equation}`

Statistical approaches are considered to

f(x) = x + 3 \end{equation}

be generally applicable and work well for natural textures present in

images.

Here the `\begin{equation} f(x) = x + 3 \end{equation}`

won't work. Could someone please help me?

## Best Answer

Use dollar symbols:

Note that equations should be part of a sentence. Also, you might like to read the Not So Short Introcution to LaTeX2e.