RPN-34 CE is a photo-realistic simulation of Hewlett-Packard's third-generation scientific calculator HP-34C.

Released in 1979, the HP-34C was the high-end scientific member of the so-called "Spice" series. It was discontinued in 1983.

RPN-34 CE is a massively enhanced, yet fully compatible version of the HP-34C.


Features

• Programmable (999 steps, 12 labels, 10 flags)


• Photo-realistic look-and-feel


• Full compatibility with the HP-34C


• 31 commands not available on the HP-34C


• Easier to use and enormously faster than the original calculator


• 21 registers always available (no memory allocation scheme)


• 80 additional registers (optional)


• Unrestricted STO and RCL register arithmetic, including the I register


• Improved MEM command showing last program step, labels in use, non-zero registers


• Key-click with volume control and optional key-glow


• Swipe left across display to correct wrong number entries


• Cut/copy/paste display values as well as program steps


• Show/hide stack by swiping display


• Show stack and memory registers by tapping display once


• Single-step programs while watching registers and command names


• Display and annotate programs. Navigate in program listing.


• Cut and paste any range of program steps


• 10 Sounds (programmable)


• Save, Print, Share programs, including AirDrop and Dropbox


• Battery indicator lights up when battery charge drops below 10%


• Convenient single-key shortcuts for SST, BST, DEL, TOP, END, Roll up, Roll down

• Decimal Point:
  Select how the decimal should be represented. Also defines the look of the 1000's separator.


• Top Bar:
  Keys used for creating and running programs, as well as extra functions.
  May be dimmed or turned off.
  Tap "Operations" to see descriptions of the top functions.


• Show Key Fronts:
  If enabled, tapping the h prefix key will highlight the hard-to-read functions printed
  on the key fronts.


• Registers:
  Choose between the HP-34C's registers (R0–R.9 plus I), or use registers R0–R.9 plus R20–R99.
  Registers 20 and above are addressable indirectly only, via the I-register.
  Note that the range 0..99 may be used without restrictions; the I-register is kept separate.
  The command CLEAR REG clears the range defined by the switch setting, including I.


• Integration Accuracy:
  Normally set to Norm. Select High or Best to improve results for certain integration calculations.
  Running time will increase with higher precision.


• Key Glow Effect:
  If enabled, tapped keys are shortly highlighted. Useful if key-click sound is off.


• Show Prefix Indicators:
  If enabled, prefix keys like f, g, h, STO etc. will get a white outline as long as
  they are active. A prefix key may be tapped again to deactivate it.

• New:
• • Long-press program listing to change font of description from proportional to non-proportional and vice versa.
• • New program "Curve Fit Automatic" added

• New:
• • Register I is now formatted in Register View for easy interpreting in ISG/DSE commands
• • New program added: "Locating the Moon"

• New:
• • Optional stack display (swipe display right/left)
• • Cut and paste any number of program steps
• • Set flags are shown as highlighted register numbers in Register View
• • Flags are saved and loaded along with programs
• • Select integration precision in Settings (Norm/High/Best)
• • Warning dialog on deleting program memory or program files
• • Improved reliability of comparisons
• • Added two program pacs ("Student Engineering Applications" and "Surveying Applications")

• Bug Fixes:
• • In rare situations, executing Integrate or Solve from the keyboard would not stop correctly after the calculation
• • Issues with branching via I-register

• First public version.

RPN-34 CE