Bonacci
Bonacci refers, most commonly, to Leonardo Bonacci, more widely known as Fibonacci, an Italian mathematician from the Republic of Pisa, considered to be "the most talented Western mathematician of the Middle Ages". He is best known for the Fibonacci sequence, a numerical sequence where each number is the sum of the two preceding ones, starting with 0 and 1.
The term "Bonacci" can also be used more generically to refer to mathematical concepts or sequences related to or derived from the Fibonacci sequence. This includes generalizations of the Fibonacci sequence, such as Lucas sequences, or applications of Fibonacci numbers in various fields.
Because "Bonacci" is often a variant of the more common "Fibonacci," usage often depends on context. In historical context, referring to the man himself, "Bonacci" is accurate. However, when discussing the sequence or related mathematical ideas, "Fibonacci" is the more prevalent and widely understood term.