Fun with isograms

An isogram is a meaningful string, generally  a word or a phrase, made of distinct letters. When playing with combinatorics, it’s fun to learn about the existence of such words. Let’s take the word COMBINATORICS, then there are 13!/(2!2!2!) ways to form a new 13 letters words from its letters. In fact, we must divide [...]

Dec 06, 2008 | Have your say »