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.

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...

May 6, 2015 · The meaning of various equality symbols Ask Question Asked 10 years, 2 months ago Modified 9 years, 2 months ago

Apr 28, 2012 · Edit: to simply say, what I really need is somehow formal or intuitive concept of topology and topological space that would allow me to grasp the meaning of topology and topological space. Thanks.

Mar 25, 2021 · So I'm just getting into topology and I see spaces such as S1 S 1 or S2 S 2 used a lot. What is the meaning of S1 S 1 or S2 S 2? Furthermore, what is meant by the cartesian product S1 ×S1 S 1 × S 1 or S2 ×S2 S 2 × S 2? I've looked everywhere and it's a difficult question to Google. All I know is that it has to do with circles. Like a two-dimensional torus is composed …

May 2, 2015 · Okay this may sound stupid but I need a little help... What do d dx d d x and dy dx d y d x mean? I need a thorough explanation. Thanks.

Oct 31, 2017 · I'm doing a research report, and I need to determine a companies assets. So I found their annual report online, and for the assets, it says (in thousands). One of the rows is: Net sales $ 26,234...

I am currently learning about the concept of convolution between two functions in my university course. The course notes are vague about what convolution is, so I was wondering if anyone could giv...

I would agree with the rule " [dependent] versus [independent]." The word "versus" can mean "compared with," and it more frequently makes sense to compare a dependent value with its associated independent value, because well, the independent variable doesn't really "care" about the existence of the dependent variable, but the converse relationship is by definition.

Jan 26, 2020 · The set of (multiplicative) invertible elements (also called ‘units’) in the ring Z/nZ Z / n Z. If n n is prime, this ring is a field, and thus, the set of units is just the set of non-zero elements.