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 Feb5 awarded Yearling Dec19 awarded Constituent Dec19 awarded Caucus Feb10 awarded Fanatic Dec17 comment What's the meaning of $\mathbb{N}_0,\wedge$ In Belgium $\mathbb{N}_0$ means $0$ is excluded. That might suggest the first possibility is meant? Dec17 comment What's the meaning of $\mathbb{N}_0,\wedge$ So the question, without context, is ambiguous? Dec17 awarded Scholar Dec17 accepted What's the meaning of $\mathbb{N}_0,\wedge$ Dec17 comment What's the meaning of $\mathbb{N}_0,\wedge$ I can confirm that $\mathbb{N}_0$ is meant to be $\{1,2,3,\dots\}$. So gcd would be the most common interpretation? Dec17 awarded Student Dec17 comment What's the meaning of $\mathbb{N}_0,\wedge$ @arbautjc, the previous lecturer teaching that course said that, too, but I'm not able to contact here anymore... (alas) Dec17 comment What's the meaning of $\mathbb{N}_0,\wedge$ @DanielFischer, I guess we found a not-so-universal part of the mathematical language... Dec17 comment What's the meaning of $\mathbb{N}_0,\wedge$ @par. There hardly is a context. The exact exercise is to consider the magma $\mathbb{N}_0,\wedge$ and to find out what properties the operation has. Dec17 comment What's the meaning of $\mathbb{N}_0,\wedge$ @SamiBenRomdhane, I guess you mean without 0? (Or at least that's the common meaning in my country) Dec17 asked What's the meaning of $\mathbb{N}_0,\wedge$ Dec14 comment For a stocks trader, given the probability of having a profitable day, how to determine probability of having a profitable year? How many profitable days are needed to make the year (or month) profitable? Nov21 comment Practical context for a quadratic equation with negative discriminant. OK, I understand that, but that's an important issue when you're studying quadratic equations, where you can find 0, 1 or 2 solutions and interpret that. What I'm trying to find is a complex solution to a quadratic equation, that has meaning in real life. Nov21 comment Practical context for a quadratic equation with negative discriminant. I'm aware of the historical context of complex numbers, but we're obliged to teach our pupils 'questions that involve solving quadratic equations with negative discriminant'. If i have to do so, I'd rather look for real-life examples (perhaps only used as an example if they are too difficult), than limit myself to 'abstract mathematics' questions... Nov21 comment Practical context for a quadratic equation with negative discriminant. I see that, but I don't see a real-life application of the solutions of the quadratic equation this way. Nov21 revised Practical context for a quadratic equation with negative discriminant. Tried to clarify the question