In computer science, binary search, also known as half-interval search or logarithmic search, is a search algorithm that finds the position of a target value, whether alone or part of a record as a key, within a sorted array. It works by comparing the ...

In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example,The value of 0! is 1, according to the convention for an empty product.The factorial operation is ...

In mathematics, the Fibonacci numbers or Fibonacci sequence are the numbers in the following integer sequence:or (often, in modern usage):By definition, the first two numbers in the Fibonacci sequence are either 1 and 1, or 0 and 1, depending on the ...

A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward. Allowances may be made for adjustments to capital letters, punctuation, and word dividers. Examples in English include "A man, a plan, a ...