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Scrolling RPN Calculator

Scrolling RPN Calculator
  • #: 233660
  • Price: $2.99 In Apple Store
  • Category: Utilities
  • Updated: 2017-01-04
  • Current Version: 3.1
  • 3.1
  • Size: 0.90 MB
  • Language: English
  • Seller: Adam Croser
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 4.0 or later.
  • © 2010-2011 Adam Croser
  •  Add to Favorite apps



The only fully featured scientific RPN calculator with a modern iOS interface: Scroll through panels of operation-buttons with a swipe of your finger. Scroll through numbers to review (and edit) your entries and calculation results. Share or transfer your results by emailing the stack.

The Scrolling Scientific Calculator gives you fast access to both basic and scientific operations with large buttons in both portrait and landscape orientations.

* Adding machine: What is the most common use for a calculator? Adding numbers, of course! Just enter the numbers, review them by scrolling, with a swipe of your finger, then hit the [total] button. No more entering numbers twice to check your calculation.

* Statistics: Enter the numbers, review them by scrolling, with a swipe of your finger, then hit the [stats] button. The following statistics are added to the stack and labelled:



Total Of Squares,








Root Mean Square,

Geometric Mean,


Unbiased Sample Variance,

Population Standard Deviation,

Sample Standard Deviation.

* No awkward 80's style retro interface: Scroll through panels of large operation buttons by swiping left and right.

* Operations include: total, count, mean, median, mode, variance, standard deviation (population & sample), trigonometric, hyperbolic, logarithmic, powers, roots, inverse, factorial, percent, add, subtract, multiply, divide, etc.

* Value formatting: Specify either the number of significant digits, or number of fraction digits after the decimal point. International number formats with group separator.

* Display numbers as hexadecimal by simply scrolling to the hexadecimal panel.

* Reverse Polish notation (RPN) operation.

The Scrolling Scientific Calculator is ideal for:

* Anyone who adds numbers together (e.g. receipt values.)

* Anyone recording sample readings to find averages, variances and standard deviations.

* Anyone who wants a scientific RPN calculator, and is looking for a modern, uncluttered interface ideal for their iPhone, iPod Touch or iPad.

* Kids (!) learning to add and subtract love entering the numbers and seeing them on the screen before they hit the + or - operation buttons. They can talk through the operation as it happens.

Note: This is an RPN calculator, so there is no "=" button. Proposed in the 1950s by Australian philosopher Charles L Hamblin, RPN is the way most people would actually calculate an expression in their head or on paper: "1 enter 2 enter +" instead of "1 + 2 =". Read more at: http://h20331.www2.hp.com/hpsub/us/en/rpn-calculator.html

What's New in Version 3.1

* Automatic detection of external keyboards.

View iPhone screenshots | View iPad screenshots

iPhone Screenshots

Scrolling RPN Calculator iPhone Screenshot 1
Scrolling RPN Calculator iPhone Screenshot 2

iPad Screenshots

Scrolling RPN Calculator iPad Screenshot 1
Scrolling RPN Calculator iPad Screenshot 2

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The information may be outdated (2017-03-08 20:41:35). For actual information go to iTunes

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