Word Processing for Mathematical Writing
Using a word processor for mathematical writing has the same advantages
as for other kinds of writing: better clarity, a more professional
appearance, and convenience in editing and making corrections. Of
course, mathematical writing requires some additional formatting
capabilities not needed for other subjects. Some options will be
discussed below. Also, there are some style conventions that you
should follow. Variables should be italicized,
equations that you want to refer to should be centered and numbered,
and so on. This is explained in greater detail here.
Using MS Word.
There is an equation editor in MS word that
is useful for formatting complicated mathematical expressions.
You can find it using pull down menus as follows:
Insert
>> Object >> Microsoft
Equation 3.0. (This is illustrated below).

Once the equation editor opens, you select mathematical objects (such
as sums, integrals, fractions, matrices, exponents) from a menu and
fill in text fields as needed. With a little practice this is
quite easy to use.
LaTeX. A widely used text
formatting system for technical writing is called LaTeX (pronounced
lah-tek). A convenient free software package based on LaTeX is
called LyX. You can find it at http://www.lyx.org/Home.
I have not used this software, but I think Prof. Enayat knows about it.