RPN 30 vs Calc Pro HD – iPad Calculator Usage & Stats
Reverse Polish Notation ("RPN") is an alternative way to complete calculations. Many find it to be more intuitive and user-friendly than the "normal" way of using a calculator. RPN works entering numbers first and then the operator (i.e. 53 47 + will give you 53 + 47 = 100).
This is my artistic interpretation of the ideal form for a calculator, taking inspiration from the standard Apple iPhone calculator. Make sure to spend a few minutes to get the hang of the calculator and also read the short help guide (accessed by a long press on the help button) to get the most out of it.
No ads, no paid features, always free to use.
Please enjoy and leave a review if you like the calculator.
- Apple App Store
- Free
- Utilities
Store Rank
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***** THE TOP CALCULATOR FOR IPAD *****
Calc Pro HD combines 10 powerful calculators with 10 financial worksheets!
You Will Never Need Another Calculator App Again With Calc Pro HD "4.5/5 Stars" - AppAdvice
Take advantage of the improved workflow in either Landscape or Portrait!
Calc Pro HD is the trusted choice by students and professionals around the world. The only calculator on the app store that can truly replace your pocket calculator. Calc Pro HD offers more power, more features, and more accuracy than any other mobile calculator. With ten (10) powerful calculators, ten (10) financial and eight (8) statistical worksheets, Calc Pro HD truly has a calculator for every occasion. Whether you are checking the latest currency rates or converting simple cooking measurements, Calc Pro HD makes it easy to solve even the toughest calculations.
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Features include:
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10 powerful calculators:
• Standard Calculator
• Scientific Calculator (includes RPN mode and access to constants)
• Base Conversions
• Graphing Calculator (8 equations, e-mail your equations and graph image. )
• Unit Converter (over 3000 conversions in 18 categories)
• World Currencies Converter (150+ currencies updated daily)
• Constants (contains over 1500 constants in mathematics, physics, the solar system and elements)
• Financial Calculator (with 10 worksheets)
• Statistics Calculator with 4 types of regression analysis and graphing
• Date & Time Calculator (with lunar moon phases)
The Financial Calculator contains 10 powerful calculator worksheets to help solve common financial problems. E-mail your worksheets.
• Mortgage Calculator (with Amortization Tables)
• Tip Calculator
• Loan Calculator
• Time Value Money worksheet
• Financial Date worksheet
• Percentage Change worksheet
• Break Even worksheet
• Profit Margin worksheet
• Depreciation worksheet
• Compound Interest worksheet
Five display options: normal, scientific, fractions, engineering, and fixed (2-10 decimal places).
Five calculator modes: simple, algebraic, direct algebraic, expression, and RPN.
Choose from several skin styles and color schemes, full retina support!
Advanced graphing functions: simultaneous graphs, find points on the graph and show tangents. E-mail your equations and graph image.
Tape View displays your recent equations and allows you to copy or email them.
Supported Languages: English, German, Spanish, Portuguese, French, Italian, Dutch, Japanese, Simplified & Traditional Chinese, Korean, and Russian.
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- Apple App Store
- Free
- Utilities
Store Rank
- -
RPN 30 VS. 
Calc Pro HD – iPad CalculatorDecember 27, 2024