Editing Infix notation (section)

==Usage==
[[Binary relation]]s are often denoted by an infix symbol such as [[set membership]] ''a'' ∈ ''A'' when the set ''A'' has ''a'' for an element. In [[geometry]], [[perpendicular line]]s ''a'' and ''b'' are denoted <math>a \perp b \ ,</math> and in [[projective geometry]] two points ''b'' and ''c'' are in [[perspective (geometry)|perspective]] when <math>b \ \doublebarwedge \ c</math> while they are connected by a projectivity when <math>b \ \barwedge \ c .</math>

Infix notation is more difficult to [[parsing|parse]] by computers than [[prefix notation]] (e.g. '''+''' 2 2) or [[postfix notation]] (e.g. 2 2 '''+'''). However many [[programming language]]s use it due to its familiarity. It is more used in arithmetic, e.g. 5 '''×''' 6.<ref name="Infix, Postfix and Prefix">{{cite web | url=http://www.cs.man.ac.uk/~pjj/cs212/fix.html | title=The Implementation and Power of Programming Languages | access-date=30 August 2014 | archive-url=https://web.archive.org/web/20220827171346/https://www.cs.man.ac.uk/~pjj/cs212/fix.html | archive-date=27 August 2022}}</ref>