The Fibonacci sequence is a set of steadily increasing numbers where each number is equal to the sum of the preceding two numbers.

After dividing 1 by 999-quattuordecillion (a number that’s 48 integers long), you get the Fibonacci sequence presented in neat, 24-digit strings. Here’s why that happens. As a quick refresher ...

Fibonacci retracements are tools to draw support lines, identify resistance levels, and place stop-loss orders. Learn how to use Fibonacci ratios in trading.

Find out more about Fibonacci retracement levels and how some forex traders use them profitably in their trading strategies.

This string of numbers is the Lucas sequence, honoring the 19th-century French mathematician Édouard Lucas (1842–1891), who studied the Fibonacci sequence (and gave it its name).