Options for the amsmath package

The amsmath package has the following options:

centertags

(default) For a split equation, place equation numbers  vertically centered on the total height of the equation.

tbtags

`Top-or-bottom tags': For a split equation, place equation numbers  level with the last (resp. first) line, if numbers are on the right (resp. left).

sumlimits

(default) Place the subscripts and superscripts    of summation symbols above and below, in displayed equations. This option also affects other symbols of the same type---, , , , and so forth---but excluding integrals (see below).

nosumlimits

Always place the subscripts and superscripts of summation-type symbols to the side, even in displayed equations.

intlimits

Like sumlimits, but for integral  symbols.

nointlimits

(default) Opposite of intlimits.

namelimits

(default) Like sumlimits, but for certain `operator names' such as , , , , , that traditionally have subscripts   placed underneath when they occur in a displayed equation.

nonamelimits

Opposite of namelimits.

To use one of these package options, put the option name in the optional argument of the usepackage command---e.g., SPM_quot".

The amsmath package also recognizes the following options which are normally selected (implicitly or explicitly) through the documentclass command, and thus need not be repeated in the option list of the usepackage|amsmath| statement.

leqno

Place equation numbers on the left. 

reqno

Place equation numbers on the right.

fleqn

Position equations at a fixed indent from the left margin rather than centered in the text column. 

For symmetry there should perhaps be a SPM_quotcentereqn" option as well, to balance with SPM_quotfleqn", but as things currently stand there doesn't seem to be a genuine need for it.