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Text File | 1999-01-07 | 2.3 KB | 79 lines | [TEXT/ttxt] |
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- YaCa 1.5.1
-
- Simon Richardson 1999
- http://www.cobalt.u-net.com
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-
-
- When a new version is ready it first appears at my web site:
-
- <http://www.cobalt.u-net.com/>
-
- I also notify Version Tracker:
-
- <http://www.versiontracker.com/>
-
-
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-
- Changes for v1.5.1
-
- - Bug fix. All-Clear wasn't working correctly.
-
- Changes for v1.5
-
- - Undo/Redo.
- - More conversions and reorganised Convert menu.
- - Sound levels made adjustable.
- - Cleaner event handling and initialisation.
- - More sophisticated memory usage.
- - Raising a negative number to a fractional power now produces the
- correct error message.
-
- Changes for v1.4.1
-
- A minor upgrade;
- - inches<->points conversion added.
- - redrawn buttons.
-
- Changes for v1.4
-
- This is a substantial rewrite of the program.
-
- Engine
- Older versions evaluated expressions left to right (the same way as
- the Apple calculator). This version has a completely new 'engine' at
- its heart which takes care of the precedence of operators. The ReadMe
- file explains the implications of this.
- The new engine also makes it much harder to enter nonsensical numbers
- or expressions.
-
- Other changes
- Most parts of the program have been revised, most obvious will be:
- - memory contents are displayed on the file menu.
- - 9 extra memories.
- - new prefs dialog.
- - new (faster) code to animate the buttons.
- - some more conversions.
-
- Less obvious but actually much larger changes make the program more robust,
- faster and easier to modify in future:
- - new code for decoding buttons and keys.
- - new code for handling preferences file.
- - revised code for handling menus.
- - better testing of the machine the calculator is running on.
- - behaves more intelligently on multiple monitors.
-
- There are many other small changes throughout the program, for example
- the sounds have been resampled.
-
- Note
- Unlike earlier versions, the enter key is now an '=' key.
-
-
- Many thanks to everyone who tested the beta version of this program.
-
-
- // end of file
-