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network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 2 years, 10 months |
| seen | Jan 12 at 18:31 | |
| stats | profile views | 12 |
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Jan 3 |
awarded | Student |
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May 29 |
awarded | Teacher |
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May 29 |
comment |
practical uses of matrix multiplication I don't understand what you mean by row and column indices being comparable to "input" and "output". |
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May 29 |
answered | closed set in another closed set |
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May 25 |
comment |
Flip a coin until a head comes up. Why is “infinitely many tails” an event we need to consider? How in the world does every event have non-zero probability? -1 |
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Jan 6 |
comment |
Why do books titled “Abstract Algebra” mostly deal with groups/rings/fields? You're missing a right parenthesis in the first paragraph. |
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Dec 29 |
comment |
Do infinity and zero really exist? Infinity is not normally considered a number (what it is depends on the context... for example, if a limit is infinity, "infinity" describes the long-term behavior of a function.) Besides this technical nitpick, you're answer is absolutely correct and should be accepted. |
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Dec 29 |
comment |
Do complex numbers really exist? Harry's comment actually seems like a decent answer, although obviously you couldn't explain it in terms of fields to someone in high school. The complex numbers are a way of defining a way of multiplying together pairs of real numbers. |
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Aug 7 |
awarded | Critic |
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Aug 7 |
awarded | Scholar |
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Aug 7 |
awarded | Supporter |
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Aug 7 |
comment |
Is the function $(x, a) \mapsto (F(x,a), a)$ continuous whenever $F$ is? Thanks for the concise and correct answer! |
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Aug 7 |
accepted | Is the function $(x, a) \mapsto (F(x,a), a)$ continuous whenever $F$ is? |
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Aug 7 |
asked | Is the function $(x, a) \mapsto (F(x,a), a)$ continuous whenever $F$ is? |
