OpalCalc 1.45

OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows you to insert natural language as part of the sum, along with multi-line support so you can go back and adjust your previous calculations. Want a tiny footprint on the screen for a single sum? Resize accordingly. Want it to fill the screen for heavy-duty work? OpalCalc can adapt.

Featuring a lightweight footprint, on-the-fly calculation as you type, percentages, variable support, hundreds of units and functions, extensive notation support, intuitive design/documentation and much more. Once you've tried it, you'll never want to go back to your ordinary desktop (or PC) calculator again!

Features include:

Lightweight footprint (only 600k)
Multiline support (notepad style)
Configurable GUI with colour schemes
Built-in 'Quickstart' tutorial
Full colour coding
Multiple undo/redo, zoom in/out, etc.
Numerous built-in variables and functions (create your own too!)
Percentage support
Hundreds of measures, like kilograms and feet (create your own too)
Extensive date and time support
Currency support with conversion (data courtesy of themoneyconverter.com)
Portable (260k from a pen drive!)
Load/save/print support
Programmer syntax and functions
Custom number base support
Advanced notation support
Comma decimal point support for Europe, Russia, and South America etc.

What's new in this version:

If nothing's selected, Ctrl+C now copies the current answer to the clipboard (or last answer if current is blank).
If nothing's selected, Ctrl+X now copies the current sum to the clipboard (or last sum if current sum is blank).
The "Prefs -> Autosave prefs on exit" setting is saved after adjustment without the user having to save at that point.
As a special case, Opalcalc now handles remainders. Use x/y and then add "rem" on the end (without the quotes). Example: "7/3 rem" would equal "2 rem 1".
The 'copy' button now works if any of the output is selected (only input worked before)
Printing now remembers the saved margins without needing to open the Page Setup dialog.
Added new functions to convert from and to Kelvin: f2k(), k2f(), k2c(), c2k()
Added different type of 'cups' as a volume measurement
Cursor moves to end of document when opening a file.