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Frenzy Li

Jilin, China

Reading, Researching, Repeat.

Due to the ongoing debacle in SE's management, I am suspending all activity on SE.

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Top Questions
74 votes

The Futuristic Gun Duel

king-of-the-hill c++ asked Dec 28, 2016 at 9:16
codegolf.stackexchange.com

26 votes

Math contest: Find number of roots of $F(x)=\frac{n}{2}$ involving a strange integral.

calculus integration power-series contest-math asked Oct 21, 2012 at 14:42
math.stackexchange.com

21 votes

Can you count the number of rectangles?

code-golf ascii-art image-processing asked Aug 5, 2017 at 6:48
codegolf.stackexchange.com

10 votes

Prove that three $2\times2$ matrices that commute are linearly dependent

linear-algebra asked Jul 14, 2017 at 11:21
math.stackexchange.com

10 votes

Multi-Factorial and Series with Triple-factorial terms

special-functions asked Nov 21, 2012 at 12:57
mathematica.stackexchange.com

9 votes

Evaluate integral $\int_0^\frac{\pi}{2} \ln\left(\frac{1+a\cos x}{1-a\cos x}\right) \frac{\mathrm{d} x}{\cos x}$ for $\left|a\right|<1$

integration definite-integrals leibniz-integral-rule asked Oct 8, 2012 at 5:35
math.stackexchange.com

5 votes

How to release $Mathematica$ from the $Pre HoldAllComplete lock

front-end asked Oct 26, 2013 at 2:28
mathematica.stackexchange.com

5 votes

Coordinate method for solving first order linear PDE

pde asked Jul 21, 2012 at 8:39
math.stackexchange.com

5 votes

Test the convergence of: $1+\frac{1}{2}-\frac{1}{3}+\frac{1}{4}+\frac{1}{5}-\frac{1}{6}+\cdots$

sequences-and-series asked Oct 20, 2012 at 4:18
math.stackexchange.com

5 votes

Prove that $\sum_{n=1}^\infty \frac{x^n}{n^n} \leqslant e^x-1$.

inequality power-series exponential-function asked Apr 24, 2017 at 11:55
math.stackexchange.com


Top Answers