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  • 59 votes cast
Dec
8
asked system of non-linear equations, complex substitution
Nov
15
awarded  Popular Question
Nov
12
awarded  Popular Question
Oct
25
awarded  Yearling
Aug
29
comment The inverse function theorem, problem with the proof
and how $\varphi$ being continous implies $f$ being continous?
Aug
29
comment The inverse function theorem, problem with the proof
but if it is contraction which solves $f$ being 1-1 why we care if $\varphi$ has a fixed point?
Aug
29
asked The inverse function theorem, problem with the proof
May
27
accepted problems with differential equation
May
27
comment problems with differential equation
Your answer is great, thanks. I just wasn't familiar with Lambert's function before
May
27
asked problems with differential equation
Oct
25
awarded  Yearling
Jul
2
awarded  Curious
May
16
awarded  Nice Question
Nov
30
accepted Prove $(1-\epsilon )\cdots(1-\epsilon ^{n-1})=n $ where $\epsilon = \exp(\frac{2\pi i}{n}), n\in \mathbb{N}, n \neq {0,1}$
Nov
30
asked Prove $(1-\epsilon )\cdots(1-\epsilon ^{n-1})=n $ where $\epsilon = \exp(\frac{2\pi i}{n}), n\in \mathbb{N}, n \neq {0,1}$
Oct
25
awarded  Yearling
Jun
11
accepted Limit calculation using Riemann integral
Jun
9
awarded  Teacher
Jun
9
comment Limit calculation using Riemann integral
Integration is easy, everyone can do it on his own, I hope it is now correct :)
Jun
9
answered Limit calculation using Riemann integral