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 …

Mar 5, 2011 · For future reference, the table of mathematical symbols at wikipedia is fairly extensive and has a number of further references.

What does ! mean in sequences? Ask Question Asked 13 years, 6 months ago Modified 9 years, 6 months ago

Jun 24, 2016 · What does it mean to say "a divides b" Ask Question Asked 9 years, 4 months ago Modified 9 years, 4 months ago

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.

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.

Feb 28, 2017 · I was reading through a paper, when I encounter p(a|s). What does this mean? It was in context with log probability but I cant find this notation anywhere.

Apr 20, 2016 · What does the function f: x ↦ y mean? Ask Question Asked 9 years, 6 months ago Modified 3 years, 5 months ago

Jun 2, 2015 · What does .9 with a line above the 9 mean? Ask Question Asked 10 years, 5 months ago Modified 8 years, 10 months ago

Nov 14, 2020 · It’s certainly not a common usage. But notation is not universal, and if your professor defines it, that’s what it means in the class, but only in the class.