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 Oct3 awarded Yearling Jul2 awarded Curious Nov15 awarded Popular Question Oct3 awarded Yearling May19 answered Differential Geometry Video Lectures May11 awarded Caucus Apr20 comment Algebra of Branch Cuts Alright thanks for the qualifications, hopefully no it's better. Apr20 revised Algebra of Branch Cuts added 46 characters in body Apr20 comment Algebra of Branch Cuts There's nothing on the algebra of branch cuts in any other thread on here, the closest is this question but they never addressed the sum of branch cuts, let alone the algebra (arithmetic?) of this in general, could you remove the possible duplicate stuff? Apr20 comment Algebra of Branch Cuts Apologies, I meant finding them. Apr20 asked Algebra of Branch Cuts Mar15 comment Multivariate Taylor Expansion Thanks man, the page works for me so if you can't access it just type "banach isomorphism multilinear", & maybe the word "toplinear" along with it, into google & you should get it - if not I'll type it all out explicitly for you. Mar15 answered Multivariate Taylor Expansion Mar15 answered Operators and Functions Mar14 awarded Critic Mar12 comment Alternative function notation? From wikipedia: "the term mapping, usually shortened to map, is either a synonym for function, or denotes a particular kind of function which is important in that branch, or denotes something conceptually similar to a function" ... "Some authors, such as Serge Lang, use "map" as a general term for an association of an element in the range with each element in the domain, and "function" only to refer to maps in which the range is a field." In other words, everybody is correct because it's just a matter of the way you set up your definitions. Mar9 comment How to prove that $\lim\limits_{n\to\infty} \frac{n!}{n^2}$ diverges to infinity? $\underset{n \rightarrow \infty}{\lim} \frac{n^2}{(n+1)} = \underset{n \rightarrow \infty}{\lim} \frac{\frac{1}{n}n^2}{\frac{1}{n}(n+1)} = \underset{n \rightarrow \infty}{\lim} \frac{n}{1+\frac{1}{n}} = \underset{n \rightarrow \infty}{\lim} \frac{1}{1+\frac{1}{n}}\cdot \underset{n \rightarrow \infty}{\lim} n = 1\cdot \infty = \infty$ Mar9 comment Classification of DEs 7 Definitions & a Related Question Mar8 answered How to prove that $\lim\limits_{n\to\infty} \frac{n!}{n^2}$ diverges to infinity? Mar8 answered Book Searching in Complex Analysis