Math Formulae

LaTeX2e help 1.6

## 2.13: Math Formulae

There are three environments that put LaTeX in math mode:

`math` | For Formulae that appear right in the text.
`displaymath` | For Formulae that appear on their own line.
`equation` | The same as the displaymath environment except that it adds an equation number in the right margin.

The `math` environment can be used in both paragraph and LR mode, but the `displaymath` and `equation` environments can be used only in paragraph mode. The `math` and `displaymath` environments are used so often that they have the following short forms:

          \(...\)     instead of     \begin{math}...\end{math}

          \[...\]     instead of     \begin{displaymath}...\end{displaymath}

In fact, the `math` environment is so common that it has an even shorter form:

          $ ... $     instead of     \(...\)

- Subscripts & Superscripts Also known as exponent or index.
- Math Symbols Various mathematical squiggles.
- Spacing in Math Mode Thick, medium, thin and negative spaces.
- Math Miscellany Stuff that doesn't fit anywhere else.