Changelog

Fixed a crash in the settings if you were using the 2013 app icons on iOS 17.

User functions and conversions can now call other functions and conversions. Within reason! Let's not get too recursive here.
You can now reference constants within user functions and conversions.
Added an option to blink the display if it is updated with an identical value.
Added a button to the conversions to manually update the currency rates.
Added a new alternative icon, "Howell".
Fixed a problem editing certain functions and conversions.
Fixed a problem with the tape not remembering it was open on an iPad.
Fixed a problem with some of the alternative icons.
Fixed a problem with incorrect theme colors.
Fixed a problem with incorrect labels in the settings.
Fixed a problem with key clicks in the widget.
Fixed a problem communicating with the "About by PCalc" app.

Added support for iPadOS 16, including Stage Manager.
Added support for multiple windows on iPad.
Added a new per-calculator rotation lock option for iPhones on iOS 16.
Added an "EV Efficiency" section to the conversions.
Added ten new Pascal the Panda stickers for Messages.
Now interpret text starting with "0x", "0o", or "0b" as hex, octal, and binary numbers.
Improved theme drawing performance.
Improved handling of button selection in the layout editor.
Fixed some cosmetic problems with the user functions and conversions editor.
Fixed an ambiguity when displaying some currency symbols like Yen and Yuan.
Fixed a problem with the recent conversion text getting too small with long unit names.
Fixed a problem with the "Round to Floor" and "Round to Ceiling" user function commands with negative numbers.
Fixed a problem with the "Modulo" function with negative numbers.
Fixed a problem editing the name and images for custom function, conversion, and constant categories.
Fixed a crash when clearing a memory from the contextual menu.
Fixed a crash when adding or duplicating a layout on iPad.

Added support for iOS 16.
Added support for watchOS 9, including the Apple Watch Ultra.
You can now have multiple calculators, each with a separate setup.
You can open the app and switch to a specific calculator using a URL of the form pcalc://calculator/name.
You can now choose custom theme tint, digit, and display colours.
Added an option to the layout sections to choose between the different types of layout.
Added an option to choose if the user interface is light or dark.
Added a new Pascal the Panda sticker for Messages, "Hugs".
Improved support for Dynamic Type throughout the app.
Improved the "Theme" section of the settings.
Fixed a problem tapping the display mode indicator to quickly change modes.
Fixed a problem with controls in the Tape and Registers sections not being readable in some themes.
PCalc now requires iOS 13 or later.

Fixed a problem with missing layouts on iPhone.

Improved the appearance of the app.
Added menu commands for copying and pasting numbers with U.S. formatting.
Added a new digit style, "Matrix".
Changed the display of numbers between 0.1 and 1.0 to be more consistent in Engineering mode.
You can now set images for the categories of custom functions, conversions, and constants.
iCloud syncing of user data is now switched on again by default if you are running iOS 15.5 or later.
Key clicks are now switched off by default because they were causing the interface to lag occasionally.
Fixed a problem with the watch complication icons.
Fixed a problem with messages about pasting from other apps when dragging registers about.
Fixed a problem with operator button selection being lost after putting the app into the background.
Fixed a problem with the functions popup not opening on iPad.
Fixed a problem with the conversion actions in Shortcuts when set to "Ask each time".

Moved the About screen to a standalone app called "About by PCalc".
If you have the app installed, selecting "About PCalc" in the Help section will work exactly as before.

Due to ongoing iCloud problems, iCloud syncing of user data and layouts has been switched off by default. You can still manually export and import to sync. We will switch this back on when Apple fixes things.
Added four new alternative icons, "Ocean", "Jasper", "Salem", and "Quasar".
About screen now runs at 120Hz on suitable hardware.
Fixed a problem with too many messages about pasting from other apps.
Fixed a problem with the ticker tape vanishing when turned upside-down.
Fixed a problem importing settings and keyboard shortcuts.
Fixed a crash when pasting into the app.
Fixed a crash when rapidly tapping toolbar buttons.

This app has been updated by Apple to display the Apple Watch app icon.

Added support for iOS and iPadOS 15.
Added support for watchOS 8.
Added the ability to link calculations to notes via Quick Note on iPadOS 15.
You can now use explicit "floor" and "ceiling" rounding in user functions and conversions.
Fixed a number of icon problems.
Fixed a problem with the "Use B&W Icons" option for the Apple Watch resetting.
Fixed a problem creating custom functions, conversions, and constants after resetting iCloud data.
Fixed a crash with the Registers popup on iPad.
Fixed a crash when editing layouts on another device.
Fixed a crash when rotating the device.
PCalc now requires iOS 12.1 or later.