Mathematics uses many concepts in threes. The first structure mathematically is a triangle. There are acute, right, and obtuse angles. Trigonometry is the study of the relationship of the sides of a triangle. Have your heard of Pascal's Triangle?

Three types of averages are the mean, mode and median. The weekly salaries of six employees at McDonalds are $140, $220, $90, $180, $140, $200. For these six salaries, find: (a) the mean (b) the median (c) the mode.

List the data in order: 90, 140, 140, 180, 200, 220

Mean:90+ 140+ 140+ 180 + 200 + 220 = 6 Median: 90,140,140,180,200,220 The two numbers that fall in the middle need to be averaged. 140 + 180 = 160 2 Mode: The number that appears the most is 140

A magic square is an arrangement of the numbers from 1 to n^2 (n-squared) in an nxn matrix, with each number occurring exactly once, and such that the sum of the entries of any row, any column, or any main diagonal is the same. It is not hard to show that this sum must be n(n^2+1)/2.

The simplest magic square is the 1×1 magic square whose only entry is the number 1.

The next simplest is the 3×3 magic square and those derived from it by symmetries of the square. This 3×3 square is definitely magic and satisfies the definition given above

Lo Shu Magic Square Magic squares have been around for over 3,000 years. They are descendants of the oldest known number mystery, the legend of Lo Shu, found in China in a book entitled Yih King.

To learn more about the legend of Lo Shu I wrote to Professor Mutsumi Suzuki formerly of Japan’s Tohoku University, who sent my question on to Philip I. S. Lei, what at the time was a Master of Philosophy student in the Computer Science Department of the Hong Kong University of Science and Technology. Here is Mr. Lei’s response:

The story of ‘Lo Shu’ is as follows: In the ancient time of China, there was a huge flood. The people tried to offer some sacrifice to the ‘river god’ of one of the flooding rivers, the ‘Lo’ river, to calm his anger. However, every time a turtle came from the river and walked around the sacrifice. The river god didn’t accept the sacrifice until one time, a child noticed the curious figure on the turtle shell. Hence they realized the correct amount of sacrifice to make (15). The word ‘Shu’ means books.

Brian Miller's Vision: As a child at school I recall my teacher asking all 30 pupils within my class, where was the center of the United Kingdom. I was the only child that answered London because I could see what the others could not. Continue reading BRIAN MILLER