Fixed crash in menu logic.

Fixed crash in EQN->R/S when EQNS does not yet exist. When a new program was created by inserting END, the new program could end up being locked initially. Fixed.

Fixed a couple of rare crashes.

Applying units in PRGM mode didn't work when the RPN stack was empty. Fixed.

Fixed potential crash on app restart.

Fix for unreliable state file saving.

Now hiding shadowed labels from MVAR catalogs. Fix for certain rare crashes.

Better handling of ACC=0 in INTEG. More accurate C.E^X-1.

Fixed a couple of equation editor bugs.

Fixed handling of shared matrices in PUTMI. Fixed handling of subnormal complex numbers in 1/X. Added SLN, SRN, and ASRN to CATALOG->BASE. Added current base to the BASE mode status indicators, and made the indicators more compact. Fixed skin key highlighting for hardware keyboard keystrokes, when using certain skins with complicated key mappings. Fixed potential crash when loading state.

BASE menu: Implemented SLN, SRN, and ASRN. These functions are can be typed as Shift-SL, Shift-SR, and Shift-ASR, respectively, and RJ can now be typed as Shift-LJ. More accurate DET, INVRT, and matrix division for 2x2 matrices. When spelling out built-in function names, '-' is now accepted as an alternative for '→', to make conversion functions easier to type. Menu keys that execute different functions when pressed with Shift now show their alternate function while Shift is active. (This behavior can be disabled and enabled using the new STATIC and DYNAMIC settings in the new MENUS submenu of the MODES menu.) Decimal version: BS→N and BD→N were rounding their results to 16 digits. Fixed.

(1.3) BASE enhancements: shift and rotate functions, bit manipulation functions, floating-point conversions, and optional digit grouping. See the Free42 web site for all the details. (1.3.1) BASE: Fixed DECINT behavior for -2^(WSIZE-1). (1.3.2) RLN, RRN, RLCN, and RRCN did not drop the stack. Fixed. (1.3.2) Fixed a couple of bugs in the equation editor.

BASE enhancements: shift and rotate functions, bit manipulation functions, floating-point conversions, and optional digit grouping. See the Free42 web site for all the details. (1.3.1) BASE: Fixed DECINT behavior for -2^(WSIZE-1).

BASE enhancements: shift and rotate functions, bit manipulation functions, floating-point conversions, and optional digit grouping. See the Free42 web site for all the details.

NEWEQN and EDITEQN functions (EQN.FCN menu). These create or edit equations and strings in place, in the stack and in programs, without needing to go through EQN mode. Moved equation settings from MODES to EQN.FCN, and moved BASE settings from MODES to BASE, to make them easier to find and to declutter the MODES menu. (1.2.8a) Fixed pop-up keyboard behavior with dialogs in the equation editor.

NEWEQN and EDITEQN functions (EQN.FCN menu). These create or edit equations and strings in place, in the stack and in programs, without needing to go through EQN mode. Moved equation settings from MODES to EQN.FCN, and moved BASE settings from MODES to BASE, to make them easier to find and to declutter the MODES menu.

Fixed crash in RCOMPLX/PCOMPLX when the stack is empty (NSTK mode). More accurate integer powers of complex numbers. Specifically: special cases for pure real, pure imaginary, and numbers of the form a+ai and a-ai. Fixed VIEW for long values. Added XSTR option for EQN→STO→X and EQN→STO→PRGM. The file selector wasn't sorting the directory listing. Fixed.

Fixed crash when saving an equation without having modified it. This bug was introduced in the previous release. Improvements in error handling when evaluating equations.

SOLVER and ∫f(x) now allow selecting programs outside the current directory. Equation lines were being truncated to a maximum 100 of characters when they were displayed or printed. Fixed. Implemented Swipe to Delete in the file selector dialog.

Equations can now be embedded in programs, using X2LINE or EQN→STO→PRGM. Equation lines can be plain, which means they push the equation object onto the stack, or they can be EVAL lines, which evaluate the equation in place. Equation lines can be toggled between plain and EVAL lines using the EVAL function in PRGM mode. The CUSTOM menu didn't stick reliably, due to a bug introduced in 1.2. Fixed.

Fixed crash when trying to load invalid skins. Added IDENT function. This returns the app's version number as a negative integer, in -aabbccdd format, with 1.2.3f formatted as -1020306, for example. The number is negative in order to distinguish Plus42 from Free42, which returns positive numbers from IDENT. XROMs are now decoded immediately when pasting. Switched ^ and ↑ in the character set. The change is transparent to the user, but it restores code compatibility with the encoding of ↑ in Free42.

User-defined units with SI prefixes didn't work in the CUSTOM menu. Fixed.

Units with SI prefixes didn't work in the CUSTOM menu. Fixed.

Program locking, to prevent accidental editing of programs. This is done using the LOCK and UNLOCK functions. See the Free42 web site for details. Improved display contrast in the built-in skins. Pop-up ALPHA keyboard, for easier text entry.

Fixed pasting of GETMI, PUTMI, GETLI, and PUTLI. Added ALPHA mapping from Y^X to '↑'. Fixed crash with circular unit definitions.