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Arrow notation defines the rule of a function inline, without requiring a name to be given to the function. It uses the ↦ arrow symbol, pronounced "maps to". For example, + is the function which takes a real number as input and outputs that number plus 1.
In mathematics, Knuth's up-arrow notation is a method of notation for very large integers, introduced by Donald Knuth in 1976. [ 1 ] In his 1947 paper, [ 2 ] R. L. Goodstein introduced the specific sequence of operations that are now called hyperoperations .
The maps to symbol, ↦, is a rightward arrow protruding from a vertical bar. It is used in mathematics and in computer science to denote functions.In Z notation, a specification language used in software development, [1] this symbol is called the maplet arrow and the expression x ↦ y is called a maplet.
Arrow notation (Ramsey theory), or infinitary combinatorics; Arrow notation as a way of representing functions This page was last edited on 15 ...
Functional notation: if the first is the name (symbol) of a function, denotes the value of the function applied to the expression between the parentheses; for example, (), (+). In the case of a multivariate function , the parentheses contain several expressions separated by commas, such as f ( x , y ) {\displaystyle f(x,y)} .
In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
Apply function – Function that maps a function and its arguments to the function value; Arrow notation – e.g., +, also known as map; Bijection, injection and surjection – Properties of mathematical functions; Homeomorphism – Mapping which preserves all topological properties of a given space; List of chaotic maps
Knuth's up-arrow notation (()) Allows for super-powers and super-exponential function by increasing the number of arrows; used in the article on large numbers. Text notation exp _ a ^ n(x) Based on standard notation; convenient for ASCII. J Notation x ^^: (n-1) x: Repeats the exponentiation.