Preface Chapter 1. Basic Principles 1.1. Mathematical induction 1.2. Real numbers 1.3. Completeness principles 1.4. Numerical sequences 1.5. Infinite series 1.6. Continuous functions and derivatives 1.7. The Riemann integral 1.8. Uniform convergence 1.9. Historical remarks 1.10. Metric spaces 1.11. Complex numbers Exercises Chapter 2. Special Sequences 2.1. The number e 2.2. Irrationality of m 2.3. Euler's constant 2.4. Vieta's product formula 2.5. Wallis product formula 2.6. Stirling's formula Exercises Chapter 3. Power Series and Related Topics 3.1. General properties of power series 3.2. Abel's theorem 3.3. Cauchy products and Mertens'theorem 3.4. Taylor's formula with remainder 3.5. Newton's binomial series 3.6. Composition of power series 3.7. Euler's sum 3.8. Continuous nowhere differentiable functions Exercises Chapter 4. Inequalities 4.1. Elementary inequalities 4.2. Cauchy's inequality 4.3. Arithmetic-geometric mean inequality 4.4. Integral analogues 4.5. Jensen's inequality 4.6. Hilbert's inequality Exercises Chapter 5. Infinite Products 5.1. Basic concepts 5.2. Absolute convergence 5.3. Logarithmic series 5.4. Uniform convergence Exercises Chapter 6. Approximation by Polynomials 6.1. Interpolation 6.2. Weierstrass approximation theorem 6.3. Landau's proof 6.4. Bernstein polynomials 6.5. Best approximation 6.6. Stone–Weierstrass theorem 6.7. Refinements of Weierstrass theorem Exercises Chapter 7. Tauberian Theorems 7.1. Summation of divergent series 7.2. Tauber's theorem 7.3. Theorems of Hardy and Littlewood 7.4. Karamata's proof 7.5. Hardy's power series Exercises Chapter 8. Fourier Series 8.1. Physical origins 8.2. Orthogonality relations 8.3. Mean-square approximation 8.4. Convergence of Fourier series 8.5. Examples 8.6. Gibbs' phenomenon 8.7. Arithmetic means of partial sums 8.8. Continuous functions with divergent Fourier series 8.9. Fourier transforms 8.10. Inversion of Fourier transforms 8.11. Poisson summation formula Exercises Chapter 9. The Gamma Function 9.1. Probability integral 9.2. Gamma function 9.3. Beta function 9.4. Legendre's duplication formula 9.5. Euler's reflection formula 9.6. Infinite product representation 9.7. Generalization of Stirling's formula 9.8. Bohr-Mollerup theorem 9.9. A special integral Exercises Chapter 10. Two Topics in Number Theory 10.1. Equidistributed sequences 10.2. Weyl's criterion 10.3. The Riemann zeta function 10.4. Connection with the gamma function 10.5. Functional equation Exercises Chapter 11. Bernoulli Numbers 11.1. Calculation of Bernoulli numbers 11.2. Sums of positive powers 11.3. Euler's sums 11.4. Bernoulli polynomials 11.5. Euler-Maclaurin summation formula 11.6. Applications of Euler-Maclaurin formula Exercises Chapter 12. The Cantor Set 12.1. Cardinal numbers 12.2. Lebesgue measure 12.3. The Cantor set 12.4. The Cantor-Scheeffer function 12.5. Space-filling curves Exercises Chapter 13. Differential Equations 13.1. Existence and uniqueness of solutions 13.2. Wronskians 13.3. Power series solutions 13.4. Bessel functions 13.5. Hypergeometric functions 13.6. Oscillation and comparison theorems 13.7. Refinements of Sturm's theory Exercises Chapter 14. Elliptic Integrals 14.1. Standard forms 14.2. Fagnano's duplication formula 14.3. The arithmetic-geometric mean 14.4. The Legendre relation Exercises Index of Names Subject Index