安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- 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"
- 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
- 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
- The meaning of various equality symbols - Mathematics Stack Exchange
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- notation - What is the meaning of $\exp(\,\cdot\,)$? - Mathematics . . .
Meaning of the notation $[G : H]$ in group theory Hot Network Questions What is the rationale for zoning regulations prohibiting small shops in residential areas?
- Understanding the singular value decomposition (SVD)
I know they are matrices of specific form, I know how to calculate it but I cannot understand their meaning I have recently been sort of catching up with Linear Algebra and matrix operations I came across some techniques of matrix decomposition, particularly Singular Value Decomposition and I must admit I am having problem to understand the
- 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)
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