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CTK Exchange
Robert Dawson
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Apr-13-06, 10:20 AM (EST) |
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"Broken Calculator Applet"
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A rider: is there a way to reach _any_ integer using the broken calculator? And how many more keys could break without preventing this? -Robert Dawson
Math & CS
Saint Mary's University |
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alexb
Charter Member
1818 posts |
Apr-13-06, 10:31 AM (EST) |
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1. "RE: Broken Calculator Applet"
In response to message #0
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This may be a non-trivial problem. The answer will depend on the sort of operations allowed. An absolute minimum comes from Alice's manner of counting 1 + 1 + 1 + 1 + ... which needs only one number key and one operation. Other trivial cases:
- One number and addition + division (if the number is not 1)
- Two mutually prime numbers, addition + subtraction
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