The Fibonacci number (or sequence, or series) is the mathematical rule that defines the golden spiral, a beautiful growing pattern that appears in many places in nature. It also appears on YouTube ...

Pine cones. Stock-market quotations. Sunflowers. Classical architecture. Reproduction of bees. Roman poetry. What do they have in common? In one way or another, these and many more creations of nature ...

Do you know what Fibonacci Day is? This holiday honors Leonardo Bonacci, also known as Fibonacci, one of the finest medieval mathematicians. Fibonacci is best known for writing Liber Abaci ("The Book ...

Fourteen years ago, the mathematicians Dusa McDuff and Felix Schlenk stumbled upon a hidden geometric garden that is only now beginning to flower. The pair were interested in a certain kind of oblong ...

Though generations of schoolchildren have cursed arithmetic, the world was a much more inconvenient place without it. Before the advent of modern arithmetic in the 13th century, basic calculations ...