What does PN stand for?

The other features are power off memory protection, with prompts and menus, 15 digits internal precision, with 13maximum level of pending operation, and Reverse Polish Notation (RPN) and algebraic entry system.

Feature highlights include: Two-line display allowing users to view up to 12 digits and scroll through variables, real-text labels, menus and prompts; High-speed, low-power CPU delivering fastresults with up to 15-digit internal precision while extending battery life; Choice of time-saving Reverse Polish Notation (RPN), hierarchical or traditional chain algebraic data entry.

com/calculators, Hardware, $400 As a scientific programmable calculator, users can switch between Reverse Polish Notation (RPN) and algebraic entry-system logic at any time.

99 Designed for the education market, these calculators are the first products launched as part of HP's plans to develop a range of Reverse Polish Notation and algebraic calculators.

2) More information on Reverse Polish Notation, HP's exclusive time-saving, consistent method for entering and solving mathematical problems, is available at www.

Preferred by many engineers, scientists and students for its efficiency, RPN - which stands for Reverse Polish Notation - is HP's exclusive time-saving, consistent method for entering and solving mathematical problems.

Compared to the classic HP 12c, the Platinum has more memory (allowing for increased number of keystroke programming steps), more built-in functions and includes the option of standard algebraic mode as well as HP's famous Reverse Polish Notation (RPN) mode, which has been a favorite of many professionals because of its efficiency.

The HP 12C's high-performance standards also include keystroke programming and Reverse Polish Notation Logic, making it easy to use.