Ivan Morton Niven

From the Publisher: Schaum's has Satisfied Students for 50 Years. Now Schaum's Biggest Sellers are in New Editions! For half a century, more than 40 million students have trusted Schaum's to help them study faster, learn better, and get top grades. Now Schaum's celebrates its 50th birthday with a brand-new look, a new format with hundreds of practice problems, and completely updated information to conform to the latest developments in every field of study. Schaum's Outlines-Problem Solved. More than 1.3 Million sold! This review of standard college courses in calculus has been updated to reflect the latest course scope and sequences. The new edition includes Green's and Stokes' theorems, as well as explanations of tough topics such as delta-epsilon proofs and Riemann Integrals.

"This book, which presupposes familiarity only with the most elementary concepts of arithmetic (divisibility properties, greatest common divisor, etc.), is an expanded version of a series of lectures for graduate students on elementary number theory. Topics include: Compositions and Partitions; Arithmetic Functions; Distribution of Primes; Irrational Numbers; Congruences; Diophantine Equations; Combinatorial Number Theory; and Geometry of Numbers. Three sections of problems (which include exercises as well as unsolved problems) complete the text."--Publisher's description

It is about the beautiful segment of mathematics,namely,combinatorics,which teaches how to reduce an apparently (ugly)cumbersome problem of counting to a fascinating and easier one.*^^Let's read it to have a 'serious FUN'.