$2.99
RPN 28x Calc
Math can be fun.
⭐️5 / 5
Rating
🙌30
Ratings
📼7 scs
Content
📦w/o updates
Updates frequency
🗣❌ unsupported
Your locale
- Versions
- Price History
- Description
- FAQ
All Versions of RPN 28x Calc
3.5.4
July 1, 2023
- Prevents the assistant window from being hidden whan transitioning from Slide Over or Split View into Full Screen mode.
- Corrects the factorial of zero: 0! = 1.
More3.5.3
December 12, 2022
- Brings back the nice button titles, especially for the square root title, the A-Z title, and buttons with sigma or arrow characters.
Version 3.5:
- Adds scientific units & constants, double-tap a unit to add it to the stack.
- Unit conversion with CONVERT command.
- The log/variable/units viewer is now also on iPhone.
- Debugging programs: add breakpoints with HALT; use SST to step through the list of commands.
- Adds upper-tail probability distribution commands for the chi-square (UTPC), Snedecor's-F (UTPF), standard normal (UTPS), normal (UTPN), and Student's-T (UTPT) distributions.
...
And more; see version history.
More3.5.2
October 31, 2022
- Corrects the calculation of n-th roots.
Version 3.5:
- Adds scientific units & constants, double-tap a unit to add it to the stack.
- Unit conversion with CONVERT command.
- The log/variable/units viewer is now also on iPhone.
- Debugging programs: add breakpoints with HALT; use SST to step through the list of commands.
- Adds upper-tail probability distribution commands for the chi-square (UTPC), Snedecor's-F (UTPF), standard normal (UTPS), normal (UTPN), and Student's-T (UTPT) distributions.
- Enhanced the precision for results returned by the SQRT command.
- 0.5 ^ now returns a complex result for negative operands.
- Fixes negative, fractional power calculations.
- New layout for secondary buttons on the A-Z page.
- Fixes an issue when typing commands like PASTE, EDIT or VISIT.
- General improvements.
More3.5.1
September 29, 2022
- Fixes a crash during button reordering.
Version 3.5:
- Adds scientific units & constants, double-tap a unit to add it to the stack.
- Unit conversion with CONVERT command.
- The log/variable/units viewer is now also on iPhone.
- Debugging programs: add breakpoints with HALT; use SST to step through the list of commands.
- Adds upper-tail probability distribution commands for the chi-square (UTPC), Snedecor's-F (UTPF), standard normal (UTPS), normal (UTPN), and Student's-T (UTPT) distributions.
- Enhanced the precision for results returned by the SQRT command.
- 0.5 ^ now returns a complex result for negative operands.
- Fixes negative, fractional power calculations.
- New layout for secondary buttons on the A-Z page.
- Fixes an issue when typing commands like PASTE, EDIT or VISIT.
- General improvements.
More3.5
September 26, 2022
- Adds scientific units & constants, double-tap a unit to add it to the stack.
- Unit conversion with CONVERT command.
- The log/variable/units viewer is now also on iPhone.
- Debugging programs: add breakpoints with HALT; use SST to step through the list of commands.
- Adds upper-tail probability commands for the chi-square (UTPC), Snedecor's-F (UTPF), standard normal (UTPS), normal (UTPN), and Student's-T (UTPT) distributions.
- Enhanced the precision for results returned by the SQRT command.
- 0.5 ^ now returns a complex result for negative operands.
- Fixes negative, fractional power calculations.
- New layout for secondary buttons on the A-Z page.
- Fixes an issue when typing commands like PASTE, EDIT or VISIT.
- General improvements.
More3.4.1
May 1, 2021
- Corrects re-opening the last-used button page.
(Version 3.4 added: complex numbers, a USER page for user-defined buttons, interactive button reordering, and paired statistics commands.)
More3.4
April 14, 2021
- Supports complex numbers!
- Adds a USER page for user-defined buttons.
- Allows interactive button reordering (enable it in the settings).
- New commands: R→C, C→R, RE, IM, CONJ, R→P, P→R, ARG, and SCONJ.
- Adds paired statisitcs: COL∑, CORR, COV, LR, PREDV.
- More.
More3.3
February 26, 2021
- Adds support for thousand separators.
- Enhanced operand coloring, dimming separators, also in the log (iPad).
- Patches bad results produced by EXP for values below -252.672.
More3.2.1
September 14, 2020
- Makes use of a simplified and faster start screen.
- Improves padding of commands entered in alpha mode.
- Removes obsolete code.
More3.2
May 26, 2020
- Eliminates animation conflicts which had caused sluggish button responses.
- The assistant window can now make better use of the available space on large iPads.
- Uses high-precision power function to calculate powers with integer exponents.
- Makes the busy spinner appear white in dark mode.
- Removes the obsolete "Animate All Buttons" setting with which button animations could be disabled.
- Tapping to reposition the cursor in the entry field no longer competes with lingering scroll indicators.
- Corrects selection when finishing editing an entry from a lower stack level.
MorePrice History of RPN 28x Calc
Description of RPN 28x Calc
RPN 28x Calc is a programmable scientific calculator with a pleasingly classic look. Despite its nostalgic appearance, it offers a modern and intuitive user experience, allowing you to interact with your operands by touching them in the display.
It is a reverse-polish notation (RPN) calculator with a dynamic stack display. As you add more values to the stack, the display shown on an iPad automatically expands. To see more lines, simply swipe to scroll. You can also re-order the levels or modify any of the values on the stack.
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"It’s the third RPN calculator I buy for my iPad 2 and the first that makes me happy.
It’s graphically appealing, intuitive and very responsive. I rated it 5 stars."
(Nuno Gomes)
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Advanced commands are available in a secondary panel on iPad or as alternative button pages on iPhone. The buttons are efficiently grouped into five pages that you can quickly access by swiping left or right:
- user-defined buttons,
- letters A-Z for typing,
- trigonometric, logarithmic, and data manipulation commands,
- statistics, storage and programming commands
- binary integers, system flags and boolean logic.
This is why RPN 28x Calc is unique in its class:
- You can tap a row to select it and issue commands for the selected level.
- In REORD mode, it is possible to rearrange the stack by dragging the rows.
- You can swipe up or down the display to see all levels.
- When you enter a value, you can tap a digit to reposition the cursor.
- Tap on the status indicators in the top of the display to change their state.
- Drag buttons to re-arrange them as you like it (enable that in the settings).
Additionally, on iPad:
- The display automatically resizes to show more than just 4 levels of the stack.
- You can slide the secondary panel out of view or swipe across the panel to navigate between button pages.
New:
- 147 scientific units and elementary physical constants.
- Upper-tail probablity distribution commands.
- Interactive program debugging.
RPN 28x Calc is all you need.
- High precision arithmetics.
- Supports multiple data types: real numbers, complex numbers, binary integers, or lists, arrays, vectors, matrices, programs, names, and strings.
- Name your own variables; inspect them in the variable viewer.
- Use the rich command set to write your own programs.
- Create buttons for your programs.
- Interactive button reordering.
- Browse all scientific units and constants in the units viewer.
- View the command history and the results in the log viewer.
- Customizable button click & alert volumes.
- Support for landscape orientation.
- Optional thousand separators.
- Haptic feedback on iPhone.
- External keyboard support.
- Dark Appearance since iPadOS 13 or iOS 13.
- Alternative, dark app icon.
- Use the same app on iPad or iPhone.
- Use the calculator in iPad multitasking, i.e. in a Slide Over view or in Split View.
- No ads, no tracking, and no rating requests.
- Downloadable user guide with introduction and command reference (PDF).
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Plans for future versions (NOT YET SUPPORTED):
- Arithmetic expressions.
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RPN 28x Calc: FAQ
Yes, RPN 28x Calc is iPad-friendly.
The RPN 28x Calc app was launched by Eric Roller.
The minimum supported iOS version for the app is 12.4.
The RPN 28x Calc app has a consumer rating of 5.0 and gets a lot of positive feedback.
The App Category Of Rpn 28x Calc Is Productivity.
The latest version of RPN 28x Calc is 3.5.4.
The latest RPN 28x Calc update was released on June 30, 2024.
The RPN 28x Calc app originally came out on February 6, 2023.
{{ name}} doesn’t contain potentially objectionable material and is rated Eric Roller.
Currently, RPN 28x Calc supports English.
No, RPN 28x Calc is not on Apple Arcade.
No, RPN 28x Calc does not support in-app purchases.
Sorry, RPN 28x Calc is not designed for integration with Apple Vision Pro.
