`equation`

Synopsis:

\begin{equation}mathematical text\end{equation}

The same as a `displaymath`

environment (see `displaymath`

)
except that LaTeX puts an equation number flush to the right margin.
The equation number is generated using the `equation`

counter.

You should have no blank lines between `\begin{equation}`

and
`\end{equation}`

, or LaTeX will tell you that there is a
missing dollar sign.

The package `amsmath`

package has extensive displayed equation
facilities. New documents should include this package.