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 …

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 …

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 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 …

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 …

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 …

@Brian M. Scott What does it mean when each subscript is non-numerical, and is exactly the same? I have an equation that has a value T (temperature in Kelvin), subscripted gamma.

Nov 7, 2015 · What exactly does $\ll$ mean? I am familiar that this symbol means much less than. ...but what exactly does "much less than" mean? (Or the corollary, $\gg$) On Wikipedia, the …