# reverse polish notation meaning

**Noun:**

**reverse Polish notation**

- A parenthesis-free notation for forming mathematical expressions in which each operator follows its operands

- postfix notation, suffix notation

**Type of: **parenthesis-free notation

**Encyclopedia:** Reverse Polish notation

[Electronics]

Abbreviation, RPN. A system of notation for expressing mathematical operations in which the operators follow the operands being manipulated. It is a mode of entry for some calculators (e.g., the operation 7

**×**

**2 might be entered by pressing keys in this order: 7, ENTER, 2,**

**×).**

reverse recovery time See RECOVERY TIME,

1.

reverse resistance Symbol,

reverse recovery time See RECOVERY TIME,

1.

reverse resistance Symbol,

**R****r****.****The resistance of a reverse-biased pn junction. Also called BACK RESISTANCE. Compare FORWARD RESISTANCE.**

[Computer]

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The best-known language with postfix syntax is FORTH. Some Hewlett-Packard calculators use it, e.g. HP-25, HP-29C, HP-41C, HP-23SII.

Compare: infix notation, prefix notation.

[Computer]

<

*language*> (Or "Reverse Polish Notation", RPN) One of the possible orderings of functions and operands: in postfix notation the functions are preceded by all their operands. For example, what may normally be written as "1+2" becomes "1 2 +". Postfix notation is well suited for stack based architectures but modern compilers reduced this advantage considerably.The best-known language with postfix syntax is FORTH. Some Hewlett-Packard calculators use it, e.g. HP-25, HP-29C, HP-41C, HP-23SII.

Compare: infix notation, prefix notation.

More: Next

## Examples

More: Next*reverse polish notation*- remember struggling with
*reverse polish notation*on your first scientific calculator - The HP 12c featured the
*reverse Polish notation*mode of data entry. - For arithmetic operators, this follows the rule of
*reverse Polish notation*. - They are also called, respectively, Polish notation and
*reverse Polish notation*.