title: An Accompaniment to Higher Mathematics (Undergraduate Texts in Mathematics)
author:  George R. Exner 
description: Though I am neither a student nor an instructor of mathematics (although I use mathematics in my teaching and apply it in my work), I found this book extremely useful and fun to read. The language is colorful, the phrasing is simple, and the facts are not intimidating. At times, I felt that I was reading a good novel, whose characters were definitions, examples, rules, proofs, and such, and that I had a magic stick to make them behave according to my will. -- <i>T. Rus, <i>Computing Reviews,</i> May 1997</i>
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  ![](index-1_1.jpg)
  
  
  Undergraduate Texts in Mathematics
  
  
  Undergraduate Texts in Mathematics
  
  
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  **Series Editors:**
  
  
  
  
  
  Sheldon Axler
  
  
  _San Francisco State University_
  
  
  
  
  
  Kenneth Ribet
  
  
  _University of California, Berkeley_
  
  
  
  
  
  
  
  
  
  
  
  **Advisory Board:**
  
  
  
  
  
  Colin C. Adams, _Williams College_
  
  
  Alejandro Adem, _University of British Columbia_
  
  
  Ruth Charney, _Brandeis University_
  
  
  Irene M. Gamba, _The University of Texas at Austin_
  
  
  Roger E. Howe, _Yale University_
  
  
  David Jerison, _Massachusetts Institute of Technology_ Jeffrey C. Lagarias,
  _University of Michigan_
  
  
  Jill Pipher, _Brown University_
  
  
  Fadil Santosa, _University of Minnesota_
  
  
  Amie Wilkinson, _University of Chicago_
  
  
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  **Undergraduate Texts in Mathematics** are generally aimed at third- and
  fourth-year undergraduate mathematics students at North American universities.
  These texts strive to provide students and teachers with new perspectives and
  novel 