# Calc98 Version 5 Release Note

For up-to-date information about the current version see our website at http://www.calculator.org/.

This version contains the following bug fixes and enhancements:

## Release 5.29 (Release candidate - public)

- WindowsCE version should shut down if insufficient resources - fixed
- Removed the File/Close command on WindowsCE (WindowsCE UI design guidelines)
- Better CPU calibration on WindowsCE device
- Strange behaviour of display array scrollbars on WindowsCE - fixed
- Confusing behaviour of brackets in certain complex expressions - fixed
- Changing bracket button legend is unhelpful and breaks UI design guidelines - removed
- In RPN mode, no warning on stack overflow - fixed
- In RPN array mode, valid entry sometimes not recognised (so operator does nothing) - fixed
- WindowsCE installer doesn't warn if try to install CE3 version on CE2 device - fixed
- Strange display behaviour when initially loading data with different array size from file on WindowsCE - fixed

## Release 5.28 (Release candidate)

- Two's complement display implemented correctly.
- Negative numbers truncated to zero showed "-0" - fixed.
- "Clear All" button added to memory select dialog.
- Some incorrect button legends if enter "opt" while keypad shifted - fixed.
- Engineering notation displayed 10 as "1e1" - fixed.
- Select added unit, property or constant when editing properties database.
- Change time constants (Time in Month etc.) to be in consistent units.
- Stopwatch timer inaccurate on WindowsCE - fixed.
- Warn if properties database modified but not saved.
- Help title bar button removed from Modes property sheet
- CAB install for WindowsCE devices
- Spell checked the help files and made corrections
- Cursor keys control stopwatch in time mode
- Keyboard accelerator added for RPN stack display
- Improved tab order on memory dialog to improve keyboard use
- A button added to the Options/Data page to delete the registry key
- If property added but no units it was not saved - fixed

## Release 5.27 (Release candidate)

- Inconsistent behaviour for factorials of very large numbers - fixed
- Meaningless large values for tangents at infinity - fixed
- On Unicode versions (e.g. CE) input of angle degrees did not work - fixed
- Addressed some internationalization problems with non Latin-1 code pages
- Tool tips not cleared when changing mode e.g. Hex to Bin - fixed
- Bit wise shift button implemented for baseN, hex, octal, binary modes.
- Added a Unicode build for WindowsNT, Windows2000, WindowsXP
- Added number base modes to help files
- Corrected boiling point of methanol
- Some fixes to the help files
- We are now including the full point release in the download filename to avoid caching problems
- A known problem with help files on CE2 devices is addressed in the installation instructions

## Release 5.26 (Release candidate)

- Display invisible on Windows CE 2 if display font is changed - fixed
- RPN stack roll down does nothing - fixed
- Percent key not working - fixed
- Ctrl-X (cut) not working - fixed
- Periodic table group headings can be misaligned - fixed(?)
- Decimal and thousands separator now default to Windows locale settings when Calc first run
- In some locales there are problems with key legends - (outstanding problem)
- Pi button does not push stack correctly in RPN mode - fixed
- OS Version information was incorrect - fixed
- Help files updated

## Release 5.24 (Beta)

- Complex number support
- More powerful matrix functions
- Keyboard accelerators changed (to allow use of Ctrl-C and Ctrl-V for copy and paste)
- Roman numeral support
- Built-in periodic table of the elements
- WindowsCE platform support
- Copy and paste work with arrays
- Memories support arrays
- Calculator can be minimised to the system tray
- Calculator can be minimised at start-up (for adding to StartUp directory)
- Stopwatch functions improved
- Help works better if no HTML help support and can't find iexplore.exe
- User can choose browser executable
- Better HTML Help and help files updated
- Most calculator functions now support array operation
- Matrix functions now work in algebraic logic mode
- Rounding problems fixed
- Scrolling of arrays is more efficient
- ASCII table supporting control characters by name
- Angle mode shown in title bar
- Starting a second instance of calculator brings existing instance to top
- Mode dialog re-designed - "Layout" page renamed "View"
- Keypad configuration now accessed from "View" tab page
- All dialogs adjusted to support Pocket PC format
- Added rectangular/polar co-ordinate conversions
- Quick convert buttons to repeat or reverse last units conversion
- Extra row of buttons for rapid switching between modes
- non decimal modes now support full precision
- User changeable decimal point symbol
- User changeable thousands separator symbol
- Added more units and constants (and some corrections)
- Can navigate to calculator home page from about box
- Find function in units and constants improved
- Interest rates can be converted from annual to monthly automatically
- Two's complement octal and hex modes work properly
- Percentage calculations now work with addition and subtraction
- Sexagesimal unwanted roundup problem fixed

## Problems fixed in release 4.53:

- Re-size and change fonts of buttons
- Re-arrange orientation of the keypads
- Re-size calculator and display
- Display can be expanded to a matrix or array
- Matrix operators
- Array arithmetic
- RPN (Reverse Polish Notation) option
- Algebraic precedence by default
- Optional command/menu bar
- Save/Load calculation data
- ASCII conversion
- Engineering number display
- Keyboard Tootles
- Full keyboard accelerators (short-cuts)
- Time mode now includes stopwatch feature
- Base-N mode (N up to 36)
- Support for WindowsCE version (not included in the release)

## Problems fixed in release 4.52:

- "Now" button in time mode displayed UCT (GMT) - now local time
- Erroneous behaviour of RPN stack fixed
- Time/angle values were sometimes displayed with 60 seconds
- Previous window position was restored from registry incorrectly
- Added capability to store location of browser for Help files
- Help files moved to a subdirectory
- Spin box buttons range and direction corrected
- Constants entered on stack properly in RPN mode
- Stack viewable in RPN mode
- Exchange X and Y registers in RPN mode
- Transcendental function rounding error correction
- Computes whole number powers of negative numbers
- Roman numeral mode

## Known problems with this release:

- Web based automatic property/constant upload not available
- Memory n dialog box always displays numbers in decimal
- Help files need updating
- Installation is still a manual process
- Help files do not work properly on Windows CE 2