Mathematics
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Lin

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8 Vandermonde matrices nullspaces and notation Jun 20 '18
6 Continuity of functions inside a open ball Feb 1 '15
6 Roots of a power series in an interval Jun 5 '15
5 Area of sub-triangle inside a triangle Sep 28
4 Preimage of a closed set is a closed implies f is continuous. Some concerns about the proof Jun 13 '15
4 Equivalence of notation in Divergence Theorem Jun 29 '18
3 Let $f:\mathbb{R} \to \mathbb{R}$ be $C^3$. Show the equivalence: $f^{(k)}(0) = 0$ for $k=0,1,2 \iff \lim_{x\to 0} \frac{f(x)}{x^3}$ exists Jul 7 '15
3 Equality on functions in $ \mathbb{R}^n $ Feb 1 '15
3 Upper bounds to high dimensional gaussian vectors Jan 26
2 Preservation of inequality on continuous functions Jan 31 '15
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