Fibonacci is the nickname of a medieval Italian mathematician known for a famous number sequence where each number is the sum of the two before it. This sequence appears surprisingly often in nature and art.
“Fibonacci” comes from Italian, meaning “son of Bonaccio” (from “filius Bonacci”). His full name was Leonardo of Pisa, but he became known by this family nickname.
The Fibonacci sequence shows up in sunflower seeds, pinecones, shells, and even galaxies, as if nature likes doing math. Traders, artists, and architects also borrow it to design things that feel strangely pleasing to the eye.
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