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

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 …

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.

May 2, 2015 · What do the symbols d/dx and dy/dx mean? Ask Question Asked 12 years, 7 months ago Modified 3 years, 10 months ago

Feb 19, 2025 · What does the lambda symbol in math mean? Lambda is usually specified to mean wavelength in mathematics and physics.

what does ∇ (upside down triangle) symbol mean in this problem Ask Question Asked 15 years, 1 month ago Modified 4 years, 6 months ago

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 ...

What do convergence and divergence mean? And why do they matter? Ask Question Asked 10 years, 6 months ago Modified 7 years, 11 months ago

Feb 21, 2025 · How do you measure mean length? You measure a great number of them, keeping records of every measurement, and then you calculate the average of all of the …