- 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
- Difference between ≈, ≃, and ≅ - Mathematics Stack Exchange
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 B
- 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
- What do convergence and divergence mean? And why do they matter?
I understand that when a series diverges, y doesn't approach 0 when x approaches infinity, and converging series do But what does this say? I just want to understand some applications NOTE: I'm
- What does it mean when something says (in thousands)
I'm doing a research report, and I need to determine a companies assets So I found their annual report online, and for the assets, it says (in thousands) One of the rows is: Net sales $ 26,234
- Line integral $= 0$ meaning? - Mathematics Stack Exchange
Answer: The answer I am getting is 0 0, I am fairly certain this is the correct answer What is the meaning behind a 0 0 value for a line integral Does that mean the line doesn't exist? Or the path is symmetric?
- Double arrow between sets meaning? - Mathematics Stack Exchange
A double arrow symbol between two sets usually indicates a bijection, therefore I would guess that the author means that there is a bijection between the set of rational numbers in [0, x) [0, x) that can be written as a fraction of integers with denominator q q and the set of the pairs (n, d) (n, d) such that d d divides q q, gcd(n, d) = 1 gcd (n, d) = 1 and 0 ≤ n <dx 0 ≤ n <d x The
- Meaning of conormal vector - Mathematics Stack Exchange
In my situation let S S be a surface in R3 R 3 with ∂S ≠ ∅ ∂ S ≠ ∅ (enough regular) What is the meaning of η η: conormal vector to ∂M ∂ M in M? I know it should be normal to ∂S ∂ S (dimesion 1), so I have a two dimension space for choosing a direction for η η Thanks in advance
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