Volume 48 - Issue 1 - September 2015

Mathematical Spectrum Click image to download issue

From the Editor
   pp. 1-2

The Euler Line of a Triangle
   Guido Lasters, David Sharpe
   pp. 3-5

The Lazy Man's Binomial Distribution
   Martin Griffiths, William Casbolt
   pp. 6-10

Ahmed's Integral: The Maiden Solution
   Zafar Ahmed
   pp. 11-12

A Fibonacci Curiosity
   Thomas Koshy, Zhenguang Gao
   pp. 13-15

Palindromic Pell Walks
   Thomas Koshy
   pp. 16-21

Exploring the New Zealand Puzzle
   Keith Brandt, Serge Nevsky
   pp. 22-32

A Van Aubel Theorem Revisited
   Paul Glaister
   pp. 33-36

Letter to the Editor: The AM-GM inequality and Bernoulli's 
   inequality are equivalent
   Spiros P. Andriopolos
   pp. 36-37

Letter to the Editor: Sums of squares
   Abbas Rouhol Amini
   p. 38

Letter to the Editor: A filigree sphere
   Douglas Boffey
   pp. 38-39

Letter to the Editor: A reciprocal sum of Fibonacci products
   Robert J. Clarke
   pp. 39-40

Letter to the Editor: k2 = t2 - 5u2
   Jonny Griffiths
   pp. 40-41

Letter to the Editor: The divergence of {cos(n)}
   Nick Lord
   p. 41

Letter to the Editor: Summing Fibonacci numbers
   M. A. Khan
   p. 42

Problems and Solutions
   pp. 43-46

Book review: Creating Symmetry: The Artful Mathematics of
   Wallpaper Patterns by F. A. Farris (Princeton University Press, 2015)
   Peter Derlien
   p. 47

Book review: Single Digits: In Praise of Small Numbers by 
   M. Chamberland (Princeton University Press, 2015)
   Peter Derlien
   p. 47