Activity for DavidCary
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #287844 | Initial revision | — | almost 2 years ago |
| Answer | — |
A: Is it worth it to replace Arabic numerals with Kaktovik numerals? For the vast majority of mathematics and other uses of numbers, the specific details of numeral system notation -- how to represent specific numbers -- make surprisingly little difference. As far as I can tell, there are only 2 differences between Kaktovik numerals and the decimal numeral system: ... (more) |
— | almost 2 years ago |
| Edit | Post #285026 | Initial revision | — | almost 3 years ago |
| Answer | — |
A: Intuitively, why can $a, b$ cycle in ${\color{red}{b}} = \frac c{\color{red}{a}} \iff {\color{red}{a}} = \frac c{\color{red}{b}}$? 2. Naming > "What's this phenomenon or behavior called?" Sometimes we feeding one initial value into a function to get a first result, and then feeding that result into the same function to get a second result. If the second result is always the same as the initial value, no matter what th... (more) |
— | almost 3 years ago |
| Edit | Post #285025 | Initial revision | — | almost 3 years ago |
| Answer | — |
A: Can we add without using addition? If you're allowed to use subtraction but not addition, then you could try something like $$c = 1000 - (( 1000 - a ) - b )$$ This reminds me of the way nearly all electronic and mechanical calculators and computers use the exact same ALU to do both addition and subtraction, rather than a ded... (more) |
— | almost 3 years ago |
| Comment | Post #284996 |
I agree that this sounds like it could be a lovely question with a few more details.
What do you mean by a "border ... made from ten points" and the "ten-point-area"?
Perhaps you could make a rough sketch (pencil on paper or ASCII art is fine) or gave a link to where this unusual terminology came f... (more) |
— | almost 3 years ago |