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- comments about CALC
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- CALC is a simple calculator, ported from the Windows version.
- You can operate the calculator keys by clicking with the
- left mouse button. Keyboard operation is also supported:
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- Q = square root
- N = sign change
- M = memory shift key. For memory operations, hold down the
- 'M' key and then one of 'C', 'R', '+', and '-'.
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- Hit-testing on the calculator keys is done by explicit calculation
- in the CALC program.
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- DCALC achieves the same functionality by using a dialog box, so that
- PM does the work of deciding which calculator key was selected.
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