Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

ND1 スクリーンショット

iPhone

About ND1

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

In v1.6, you can create your own calculators and interactive tools and share them with the community. Define your own keys, menus and other UI elements. Map them to internal functions and/or your own.

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

ND1 begins as a modern day update to the RPL calculator line from HP (28, 48-50g) and then adds surprising features and extensibility.

It offers programming in RPL+ and 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.