Numbers and Functions Steps into Analysis

."..any reader who works through a substantial number of the given questions would enhance considerably her/his mathematical knowledge...answers are given to almost all of the questionss, [so] even the person who just reads the book and checks out the details of an answer would probably benefit...I believe that a serious student of mathematics (and even some teachers of mathematics) would find conscientious study of this book of considerable value." Bob Prielipp, School Science & Mathematics