The main text is printed in a 10 point font by default. This document is printed in 11 point. The various type sizes within a document are relative to this base size, as described in subsection 6.3 . There are many other optional parameters which can be used, some of which will be mentioned later. They are all entered inside the square brackets and are separated by commas, with no spaces in between.
Packages can also take options, which are specified in brackets before the package name.
This is the easiest way to set normal margin widths. Enables commands to simplify modifying the margins. Will print text in two vertical columns, side by side. To format the whole document in font. To format the whole document in font.