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- notation - What does := mean? - Mathematics Stack Exchange
What does := mean? where we are saying that the two sides are equal, but we are not defining "1" to be the expression " sin2(θ)+cos2(θ) sin 2 (θ) + cos 2 (θ) " Basically, some people think that there should be notational difference between saying "I define blah to be equal to blankety " and saying " blah is equal to blankety " So they use := for the first and = for the latter Usually
- 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 is ≡ operator used for in math?
Since your professor was referring to engineering students, then it's likely they were referring to the identity symbol, which is used in an expression to mean the left and right hand sides are true for all values So cos2 θ +sin2 θ ≡ 1 cos 2 θ + sin 2 θ ≡ 1 since it's true for all θ θ whereas cos θ = 1 cos θ = 1 since it's true only for some
- Textbook Notation: Meaning of cf. - Mathematics Stack Exchange
Textbook Notation: Meaning of cf [closed] Ask Question Asked 3 years, 6 months ago Modified 3 years, 6 months ago
- notation - what does ≼ or ≺ mean? - Mathematics Stack Exchange
The curly versions of the less than and greater than signs are commonly used to denote some other ordering than the one that we are usually talking about For instance there is a partial ordering on the symmetric matrices, where A ≼ B A ≼ B if and only if B − A B A is a nonnegative definite matrix We write ≼ ≼ instead of ≤ ≤ to avoid confusion with the ordering that we use more
- inequality - What does lt; gt; mean? - Mathematics Stack Exchange
What do the less-than and greater-than symbols right next to each other mean? Does it mean either less than or greater than? In other words, not equal? I am trying to understand a book that says th
- The meaning of various equality symbols - Mathematics Stack Exchange
The meaning of various equality symbols Ask Question Asked 10 years, 8 months ago Modified 9 years, 8 months ago
- Three dot ∴ symbol meaning - Mathematics Stack Exchange
Whats the meaning of this symbol? Its a three dot symbol: ∴ I read a book, im could not find any definition of this symbol This is about continuum property of the natural numbers and the archimed
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