Mar 5, 2011 · It's one common notation for stating that the left-hand side is defined as (in contrast to equal to) the expression on the right-hand side.

As far as e-notation go's its meant to be scientific notation; So like 5.89e-4 would mean 0.000589 (move the decimal place if minus left if not move the decimal place right).

Apr 20, 2016 · So, is there any scenario where you would need to use the "↦" notation instead of "=" notation? If your answer is a full explanation, it seems to me that ↦ is entirely useless.

Aug 19, 2015 · The set of natural numbers $\ {0,1,2,\dots\}$ is often denoted by $\omega$. There are two caveats about this notation: It is not commonly used outside of set theory, and it might not be …

Dec 9, 2019 · The notation $\ {x \in \mathbb {R} \}$ is a little ambiguous, but would probably be understood. As Eike Schulte points out, there is something missing—either the "selection criterion" …

Apr 19, 2021 · 8 It's not quite common enough to have a standard notation, but a reasonably well-accepted notation would be something like 1n = (1, 1, …, 1) ∈Rn 1 n = (1, 1,, 1) ∈ R n, and if you …

To summarize what has been said in the comments, there are no "official" symbols. Use whichever notation you feel most comfortable with, as long as it makes sense and can be easily understood by …

The use of natural language is often more effective when presenting an idea. In my opinion the less often a symbol is used where a few words can go, the better. That said, there are many places …

Jun 25, 2014 · I have started seeing the "∈" symbol in math. What exactly does it mean? I have tried googling it but google takes the symbol out of the search.

Feb 20, 2013 · A better, but less common, notation is $\varepsilon$ (formatted with $\varepsilon$). You can find answers and comments related to that latter symbol $\varepsilon$ in the linked posts.