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- notation - What does := mean? - Mathematics Stack Exchange
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
- Notation for the least common multiple and greatest common divisor
The (bad) notation $ (a,b)$ is often used for the greatest common divisor; somebody uses $ [a,b]$ for the lowest common multiple Why are they bad, in particular the former? Because $ (a,b)$ is already used for several other purposes
- notation - What does ∈ mean? - Mathematics Stack Exchange
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
- notation - Symbol for “such that” (not in set) - Mathematics Stack Exchange
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
- notation - What is the mathematical symbol for range? - Mathematics . . .
An unsophisticated question from a neophyte: Given the numbers: $1,2,3,4,5$ What is the symbol for the range of the numbers? i e the lowest-highest number in the set For example, the min max
- notation - Correct way for writing domain of a function - Mathematics . . .
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" which tells you how you are choosing element of $\mathbb {R}$, or you are specifying the name and domain of some variable which will be acted on by some
- notation - The best symbol for non-negative integers? - Mathematics . . .
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 recognised by non-set-theorists In "everyday mathematics", the symbol $\mathbb N$ is rarely used to refer to a specific model of the natural numbers
- notation - Difference between ≈, ≃, and ≅ - Mathematics Stack . . .
In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators Block
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