Touch RPN for iOS: Saving and sharing the memory

Index

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All RPN flavors can store multiple copies of the memory. This is especially useful to have many different programs available and ready to use, as well as to transfer data between devices.

Memories are stored locally as well as in iCloud. If you have configured iCloud in your phones and tablets, you can exchange memories between them.

To save and load memories, press the key ≡ and use the buttons at the top of the panel.

Figure 1: Memory manipulation buttons. Press key ≡ to open this pane.

It is also possible to handle memories without leaving the calculator screen, using special keystrokes. They are slightly different for each flavor:

Financial flavors

• STO CHS save memory. Overwrite a memory or create a new one.
• RCL EEX load a previously saved memory.
• RCL CHS share a saved memory.
• RCL g EEX delete a memory.

Scientific calculator ("11")

• STO CHS save memory.
• RCL EEX load memory.
• RCL CHS share memory.
• RCL g EEX delete memory.

Advanced scientific calculator ("15")

• STO g CHS save memory.
• RCL g CHS load memory.
• STO g EEX share memory.
• RCL g EEX delete memory.

Basic scientific calculator ("10")

• STO CHS save memory.
• RCL EEX load memory.
• STO EEX share memory.
• RCL CHS delete memory.

Computer programmer's ("16")

• STO CHS save memory.
• RCL CHS load memory.
• RCL g . share memory.
• RCL g CHS delete memory.

Sharing memories

Once you have saved some memories, you can share them via WhatsApp, e-mail, Dropbox, etc. the same way you share pictures and other files.

Figure 2: Workflow of memory share

Importing shared memories

The app can also receive shared memories from others with the typical workflow.

Figure 3: Workflow when importing a shared memory

For example, if you got a memory via WhatsApp, touch on the file, choose the Share action, and choose the Touch RPN app to open the file (among the others that can open text files). You can save the memory over an existing name, or create a new one.

Important: once the memory is imported, go back the calculator and load the memory to put it into use. The import process does not change the current calculator state.

Torsten Manz simulator

As of version 7.10, the app can load program files exported from Torsten Manz's 15C simulator. The file suffix is .15c and contains only programs, not registers.

Can I edit a memory file?

The sharing features allow you to export a file, edit it and import it back. The format (JSON) is not friendly for direct manipulation, but experienced users of the calculator may find the contents familiar.

But we can't guarantee that edited files will load and work properly. A manually edited file may be rejected right at import (the rejection message does not detail the problems) or it can leave the calculator in an inconsistent state.