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...

Apr 20, 2016 · So, $↦$ is really just the math operator/binder $λ$, in disguise. Thus, one might just as well write $ (x ↦ x^2) (3) = 3^2 = 9$, denoting the function directly rather than through a level of …

What is the meaning of the notation $\exp (\text {expression})$ ? I think that it's something of the form $a^\text {expression}$ but does it mean that the base $a=e ...

Mar 18, 2011 · For future reference, the table of mathematical symbols at wikipedia is fairly extensive and has a number of further references.

Jun 25, 2014 · 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.

Mar 27, 2013 · In programming terms, parameter is a name for a variable in function definition. When using the function, you give arguments. I tend to think that the general syntax in math is funcname …

Dec 22, 2020 · 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 …

Jun 30, 2018 · Sometimes humans define functions with respect to specific symbols, though mathematically speaking, symbols don't have a pregiven meaning. In this sense, saying to …

Mar 3, 2019 · 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 …

what does ∇ (upside down triangle) symbol mean in this problem Ask Question Asked 15 years, 3 months ago Modified 4 years, 7 months ago