It is hard to imagine that another elementary analysis book would
contain ma- terial that in some vision could qualify as being new and
needed for a discipline already abundantly endowed with literature.
However, to understand analysis, be- ginning with the undergraduate
calculus student through the sophisticated math- ematically maturing
graduate student, the need for examples and exercises seems to be a
constant ingredient to foster deeper mathematical understanding. To a
talented mathematical student, many elementary concepts seem clear on
their first encounter. However, it is the belief of the authors, this
understanding can be deepened with a guided set of exercises leading
from the so called "elementary" to the somewhat more "advanced" form.
Insight is instilled into the material which can be drawn upon and
implemented in later development. The first year graduate student
attempting to enter into a research environment begins to search for
some original unsolved area within the mathematical literature. It is
hard for the student to imagine that in many circumstances the advanced
mathematical formulations of sophisticated problems require attacks that
draw upon, what might be termed elementary techniques. However, if a
student has been guided through a serious repertoire of examples and
exercises, he/she should certainly see connections whenever they are
encountered.