counting number
61Reference counting — In computer science, reference counting is a technique of storing the number of references, pointers, or handles to a resource such as an object or block of memory. It is typically used as a means of deallocating objects which are no longer… …
62Prime-counting function — In mathematics, the prime counting function is the function counting the number of prime numbers less than or equal to some real number x cite book |first=Eric |last=Bach |coauthors=Shallit, Jeffrey |year=1996 |title=Algorithmic Number Theory… …
63Finger counting — Finger counting, or dactylonomy, is the art of counting along one s fingers. Though marginalized in modern societies by Arabic numerals, formerly different systems flourished in many cultures,[1][2] including educated methods far more… …
64Fibonacci number — A tiling with squares whose sides are successive Fibonacci numbers in length …
65Catalan number — For names of numbers in Catalan, see List of numbers in various languages#Occitano Romance. In combinatorial mathematics, the Catalan numbers form a sequence of natural numbers that occur in various counting problems, often involving recursively… …
66Chinese number gestures — are a method of using one hand to signify the natural numbers one through ten. This method may have been developed to bridge the many varieties of Chinese for example, the numbers 4 (Chinese: 四; pinyin: sì) and 10 (Chinese: 十; pinyin: shí) are… …
67Cell counting — is a general name for various methods for the quantification of cells in molecular biology and in medicine. Contents 1 The need for cell counting 2 Methods 2.1 Counting chamber 2 …
68Electron counting — is a formalism used for classifying compounds and for explaining or predicting electronic structure and bonding. Many rules in chemistry rely on electron counting:*Octet rule for main group elements, especially the lighter ones such as carbon,… …
69Natural number — Natural numbers can be used for counting (one apple, two apples, three apples, ...) from top to bottom. In mathematics, the natural numbers are the ordinary whole numbers used for counting ( there are 6 coins on the table ) and ordering ( this is …
703 (number) — Three and 3rd redirect here. For other uses, see Third (disambiguation). This article is about the number. For the year, see 3. For other uses, see 3 (disambiguation). 3 −1 0 1 2 3 4 5 6 7 8 9 → …
