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  2. Reverse Polish notation - Wikipedia

    en.wikipedia.org/wiki/Reverse_Polish_notation

    Video: Keys pressed for calculating eight times six on a HP-32SII (employing RPN) from 1991. Reverse Polish notation (RPN), also known as reverse Łukasiewicz notation, Polish postfix notation or simply postfix notation, is a mathematical notation in which operators follow their operands, in contrast to prefix or Polish notation (PN), in which operators precede their operands.

  3. Infix notation - Wikipedia

    en.wikipedia.org/wiki/Infix_notation

    Infix notation is the notation commonly used in arithmetical and logical formulae and statements. It is characterized by the placement of operators between operands —"infixed operators"—such as the plus sign in 2 + 2 .

  4. Shunting yard algorithm - Wikipedia

    en.wikipedia.org/wiki/Shunting_yard_algorithm

    In computer science, the shunting yard algorithm is a method for parsing arithmetical or logical expressions, or a combination of both, specified in infix notation.It can produce either a postfix notation string, also known as reverse Polish notation (RPN), or an abstract syntax tree (AST). [1]

  5. Calculator input methods - Wikipedia

    en.wikipedia.org/wiki/Calculator_input_methods

    To study how exactly the infix notation and postfix notation differ we used one of the very old HP calculators. I was wondering that when you worked for HP did you help develop some postfix calculators? Do you prefer infix notation or postfix?". Letters-General Questions Answered. woz.org. Archived from the original on 2012-11-04

  6. Polish notation - Wikipedia

    en.wikipedia.org/wiki/Polish_notation

    Polish notation (PN), also known as normal Polish notation (NPN), [1] Łukasiewicz notation, Warsaw notation, Polish prefix notation or simply prefix notation, is a mathematical notation in which operators precede their operands, in contrast to the more common infix notation, in which operators are placed between operands, as well as reverse Polish notation (RPN), in which operators follow ...

  7. Operator-precedence parser - Wikipedia

    en.wikipedia.org/wiki/Operator-precedence_parser

    In computer science, an operator-precedence parser is a bottom-up parser that interprets an operator-precedence grammar.For example, most calculators use operator-precedence parsers to convert from the human-readable infix notation relying on order of operations to a format that is optimized for evaluation such as Reverse Polish notation (RPN).

  8. NYT ‘Connections’ Hints and Answers Today, Wednesday, January 8

    www.aol.com/nyt-connections-hints-answers-today...

    Related: 300 Trivia Questions and Answers to Jumpstart Your Fun Game Night. Ready for the answers? Scroll below this image (the image that represents your very appreciated patience!).

  9. Common operator notation - Wikipedia

    en.wikipedia.org/wiki/Common_operator_notation

    A postfix operator immediately succeeds its operand, as in x! for instance. An infix operator is positioned in between a left and a right operand, as in x+y. Some languages, most notably the C-syntax family, stretches this conventional terminology and speaks also of ternary infix operators (a?b:c). Theoretically it would even be possible (but ...