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ND1

By Naive Design

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Description

ND1 is an advanced, programmable RPL/RPN calculator that can calculate with numbers, complex numbers, fractions, vectors, matrices, strings, images, algebraic expressions, and other types of objects.

Over 500 operators deliver a total of over 2,000 functions across all object types.

In many ways, ND1 is a modern day update to the RPL calculator line from HP (28, 48-50g).

It offers RPL, RPL+, JavaScript, networking, and modern graphics (HTML5) and storage (a database with local and cloud backing). ND1 has an unlimited stack.

Try ND0 before you buy, if you're unsure ND1 is for you.

There's plenty of documentation for ND1.

Please see the support website for full specs, a "Quick Tour", tutorials, reference documentation, and a discussion forum, where support can be found.

What's New in Version 1.5.1

- Expanding the calc is back for iOS 7
- New preference for hiding toolbar
- Fixes (iOS 6 double-tap, Ans, more)

iPhone Screenshot

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Customer Reviews

The Future of Calculators

This is a wonderful app. Very deep. The dev has made some great improvements to the ui. An amazing value compared to a top of the line scientific calculator.

Very Bad

This app is a mess. Keys are in the wrong place. Even Apple's calculator is better...

Very Nice and Extremely Ambitious

This app is very nice and ambitious in scope. It attempts to take the best of HP RPN/RPL and reimagine it with JavaScript. Incredible really. The calculator does a great job with all sorts of datatypes. It does not have all the features imagined but a nice app to experiment with, customize, and use as a primary calculator. I love RPN and this handles that as well as algebraic.

This application cannot be fully appreciated until reading thru the wealth of documentation, reference material, tutorials. It also has a robust support group with contributed code.

You could teach math with this as well as teach programming. My first programming course in 1978 was on an hp 97 programmable calculator in RPL. And my first high end programmable was the hp 41CV in 1981. So this app brings back many good memories. And what the developer has added above and beyond these classic calculators is amazing. Unlimited stack, almost any kind of datatype you can imagine. Truly amazing.

Try the free ND0 and when you see how much you like it move up to this full version.

There are issues but the developer responded to me within hours of me sending an email to support.

ND1
View In iTunes
  • $2.99
  • Category: Education
  • Updated:
  • Version: 1.5.1
  • Size: 1.3 MB
  • Languages: English, Dutch, French, German, Japanese, Spanish
  • Seller:

Compatibility: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
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