Infix notation
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Infix notation is the notation commonly used in
plus sign
in 2 + 2.
Usage
perpendicular lines
a and b are denoted and in projective geometry two points b and c are in perspective when while they are connected by a projectivity when
Infix notation is more difficult to
postfix notation (e.g. 2 2 +). However many programming languages use it due to its familiarity. It is more used in arithmetic, e.g. 5 × 6.[1]
Further notations
Infix notation may also be distinguished from
arguments
are the operands. An example of such a function notation would be S(1, 3) in which the function S denotes addition ("sum"): S(1, 3) = 1 + 3 = 4.
Order of operations
In infix notation, unlike in prefix or postfix notations, parentheses surrounding groups of operands and operators are necessary to indicate the intended order in which operations are to be performed. In the absence of parentheses, certain precedence rules determine the order of operations.
See also
- Tree traversal: Infix (In-order) is also a tree traversal order. It is described in a more detailed manner on this page.
- Calculator input methods: comparison of notations as used by pocket calculators
- Postfix notation, also called Reverse Polish notation
- Prefix notation, also called Polish notation
- Shunting yard algorithm, used to convert infix notation to postfix notation or to a tree
- Operator (computer programming)
- Subject Verb Object
References
- ^ "The Implementation and Power of Programming Languages". Archived from the original on 27 August 2022. Retrieved 30 August 2014.