Math

The relationship between the circumference and the diameter of a circle is ubiquitous. Now it even has its own date.

Feb 25, 2012 – Jon Plotkin

A palindrome is a series of letters or numbers that reads the same backwards as forwards. What if you read it standing on your head?

Feb 6, 2012 – Jon Plotkin

We know the formula for the area of a circle but can we prove it is correct? If you can calculate the area of a triangle you can deduce this formula.

Jan 30, 2012 – Bruce Bowden

The three-hundred-year-old mystery, posed in the margin of a page of a book by Pierre de Fermat as a challenge to mathematicians, has finally been solved.

Jan 21, 2012 – Jon Plotkin

Friday and 13: an unlucky number and an unlucky day; a double whammy when combined. How often does it happen? Is it really that bad? Can it be a palindrome?

Jan 10, 2012 – Jon Plotkin