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- Difference between ≈, ≃, and ≅ - Mathematics Stack Exchange
The $\approx$ is used mostly in terms of numerical approximations, meaning that the values in questions are "close" to each other in whatever context one is working, and often it is less precise exactly how "close " Topologists also have a tendency to use $\approx$ for homeomorphic
- notation - What does ∈ mean? - Mathematics Stack Exchange
Another possible notation for the same relation is {\displaystyle A\ni x,} A\ni x, meaning "A contains x", though it is used less often The negation of set membership is denoted by the symbol "∉" Writing {\displaystyle x\notin A} x\notin A means that "x is not an element of A"
- What is the meaning of ⊊? - Mathematics Stack Exchange
I have encountered this when referencing subsets and vector subspaces For example, T ⊊ span(S) should mean that T is smaller than span(S)--at least from what I've gathered Is ⊊ a sort of ≤ or lt
- Textbook Notation: Meaning of cf. - Mathematics Stack Exchange
precise meaning of surd notation 1 Meaning of following notation 1 Set notation meaning 0
- sequences and series - Uniform vs normal convergence - meaning . . .
How is its meaning different than uniform convergence? I know that for example, the two are equivalent for power series Q2) I have found another definition, also named “total convergence”, which is “there exists a positive numerical sequence $\{a_n\}$ such that $\forall x\in I ( \forall n\in\mathbb{N}:|f_n(x)|\leq a_n$ and the numerical
- What is the meaning of - Mathematics Stack Exchange
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- Line integral - 0$ meaning? - Mathematics Stack Exchange
You can interpret the line integral being zero to have some special meaning: In physics, line integrals are used to calculate the (physical) work used to move an object (e g a hockey puck) along a path in some force field (e g the gravitational field)
- Whats the most right symbol to use for defined to be equal to?
$$:=$$ is the commonest symbol to denote "is equal by definition " Note that $$\equiv$$ is used to denote an algebraic identity: this means that the equation is true for all permitted values of its variables
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