- 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
- 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
- The meaning of various equality symbols - Mathematics Stack Exchange
I'm interested in knowing what is the meaning of the various equality symbols: =, ∼, ≅, ≈, ≡ For example, the speed of a car V in m s: what would be the meaning of each of these statements?
- Textbook Notation: Meaning of cf. - Mathematics Stack Exchange
Textbook Notation: Meaning of cf [closed] Ask Question Asked 2 years, 11 months ago Modified 2 years, 11 months ago
- What is the meaning of - Mathematics Stack Exchange
What is the meaning of S1 or S2? Furthermore, what is meant by the cartesian product S1 × S1 or S2 × S2? I've looked everywhere and it's a difficult question to Google All I know is that it has to do with circles Like a two-dimensional torus is composed of two circles and a three dimensional torus is composed of three circles
- What is the importance of eigenvalues eigenvectors?
Matrices by themselves are just arrays of numbers, which take meaning once you set up a context Without the context, it seems difficult to give you a good answer If you use matrices to describe adjacency relations, then eigenvalues vectors may mean one thing; if you use them to represent linear maps something else, etc
- elementary set theory - Whats the meaning of $\tilde {y . . .
The authors explain the meaning of each symbol, nevertheless, they missed this one I did some research in Wolfram Math World, but none of the examples of how the tilde is used throughout math seems promising for this example (at least none that I can make sense of) Here is a screenshot of where it is first used in the book:
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