iRPN Calc app for iPhone and iPad


4.6 ( 9166 ratings )
Business Education
Developer: BITS Lab @ UIC
Free
Current version: 1.0, last update: 7 years ago
First release : 02 May 2011
App size: 87.08 Kb

iRPN is a free Reverse Polish Notation Calculator app.

In Reverse Polish Notation operators follow their operands, for example: 1 + 2 would become 1 2 + in Reverse Polish Notation. In order for this to occur, numbers are pushed onto a stack and popped as the user applies operators. A benefit of Reverse Polish Notation calculators is that they don’t require parentheses as opposed to typical, infix calculators.

Features:
-Ability to re-order numbers in the stack
-Selecting a cell in the stack displays how you arrived at the result
-Access to scientific expressions in landscape mode

Developed by Joseph Arreola, from the Proviso Math and Science academy high-school, during his research mentorship at Bits labs.