.. math:: (a + b)^2 = a^2 + 2ab + b^2

Normally, equations are not numbered. If you want your equation to get a

- number, use the ``label`` option. When given, it selects a label for the

- equation, by which it can be cross-referenced, and causes an equation number

- to be issued. See :rst:role:`eqref` for an example. The numbering style depends

+ number, use the ``label`` option. When given, it selects an internal label

+ for the equation, by which it can be cross-referenced, and causes an equation

+ number to be issued. See :rst:role:`eqref` for an example. The numbering

+ style depends on the output format.

There is also an option ``nowrap`` that prevents any wrapping of the given

math in a math environment. When you give this option, you must make sure