As their results began to crystallize, at first they didn’t notice the striking patterns emerging. But a colleague who reviewed their work spotted the famed Fibonacci numbers—a list whose entries have ...

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 ...

What do pine cones and paintings have in common? A 13th-century Italian mathematician named Leonardo of Pisa. Better known by his pen name, Fibonacci, he came up with a number sequence that keeps ...

In 1202 Leonardo da Pisa (aka Fibonacci) taught Western Europe how to do arithmetic with Arabic numerals. In Man of Numbers: Fibonacci's... Though generations of schoolchildren have cursed arithmetic, ...

Fibonacci retracement uses specific ratios to predict stock reversals. Key Fibonacci levels are 0%, 23.6%, 38.2%, 50%, 61.8%, and 100%. Investors use these levels for setting price goals and trading ...

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 ...

...for calculating the famous Golden Ratio, that is. But hang on, you remember the Fibonacci numbers, right? Start with 1, then add the previous number to get the next one, like so: 1, 1, 2, 3, 5, 8, ...