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.

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 …

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 …

Jul 28, 2021 · 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 …

Sep 3, 2022 · Now, what exactly does undefined mean? Because I've also noticed that most mathematicians tend to use "undefined" when interpreting a value that is approaching both …

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, …

Jun 24, 2016 · I am not a number theorist and I am learning about relations. I encountered a relation that says $a \\leq b$ if $a$ divides $b$ Can someone clarify what it means to a ...

Apr 10, 2015 · 8 What does the term "undefined" actually mean? In light of the already great answers provided by Carsten and Christian, I thought a more linguistic analysis of "undefined" …

Dec 14, 2013 · What does it mean for a function to be well-defined? I encountered this term in an exercise asking to check if a linear transformation is well-defined.