Guide to LaTeX (4th Edition) (Tools and Techniques

3.1. Document class 39
pages and on the left on even pages. It does not force the printer to output
double-sided. The idea is that when these are later printed back-to-back,
the page numbers are always on the outside where they are more easily
noticed. This is the default for the book class. For article and report,
the default is oneside.
With the book class, chapters normally start on a right-hand, odd-numbered
page. The options
openright openany
control this feature: with openany a chapter always starts on the next
page, but with openright, the default, a blank page may be inserted if
necessary.
Normally the title of a book or report will go on a separate page, while
for an article, it is placed on the same page as the first text. With the
options
notitlepage titlepage
this standard behavior may be overruled. See Sections 3.3.1 and 3.3.2.
Further options
The remaining standard options are:
leqno Equation numbers in displayed formulas will appear on the left
instead of the normal right side (Section 5.1).
fleqn Displayed formulas will be set flush left instead of centered
(Section 5.1). The amount of indentation may be set with the
parameter \mathindent described below.
openbib
The format of bibliographies may be changed so that segments
are set on new lines. By default, the texts for each entry are run
together.
draft If the L AT E X line-breaking mechanism does not function properly
and text must stick out into the right margin, then this is marked
with a thick black bar, to make it noticeable.
final The opposite of draft, and the default. Lines of text that are too
wide are not marked in any way.
If multiple options are to be given, they are separated by commas, as
for example, \documentclass[11pt,twoside,fleqn]{article}. The
order of the options is unimportant. If two conflicting options are specified,
say oneside and twoside, it is not obvious which one will be
effective. That depends entirely on the definitions in the class file itself,
so it would be best to avoid such situations.