ポーランド記法
Prefix notation has seen wide application in Lisp S-expressions, where the brackets are required since the operators in the language are themselves data (first-class functions). Lisp functions may also be variadic. The Tcl programming language, much like Lisp also uses Polish notation through the mathop library. The Ambi programming language uses Polish notation for arithmetic operations and program construction. LDAP filter syntax uses Polish prefix notation.