Mathematics
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Frenzy Li's user avatar
Frenzy Li's user avatar
Frenzy Li
  • Member for 11 years, 6 months
  • Last seen this week
  • Jilin, China
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Reading, Researching, Repeat.

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All Questions Answers
Score Newest
answer
55
Is there such thing as a "smallest positive number that isn't zero"?
Aug 14, 2016
question
25
Math contest: Find number of roots of $F(x)=\frac{n}{2}$ involving a strange integral.
Oct 21, 2012
answer
15
Find if three points in 3-dimensional space are collinear
Oct 7, 2012
answer
13
"Proof" that $\log2=0$ using the expansion of $\log(1+x)$
Aug 22, 2016
question
10
Prove that three $2\times2$ matrices that commute are linearly dependent
Jul 14, 2017
question
9
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 $\left|a\right|<1$
Oct 8, 2012
answer
8
How are $z$ and $z^*$ independent?
Oct 4, 2017
answer
8
Prove that: $\frac{a}{a+1}+\frac{b}{(a+b+1)^2}+\frac{1}{a+b+1}\le1 $
Aug 21, 2012
answer
7
What is the formula for this exponentially growing "stairs"?
Aug 12, 2012
answer
6
Conjugacy Classes of the Quaternion Group $Q$
Apr 6, 2017
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Is it in the spirit of Stack Exchange to always make a sincere attempt to interpret the OP's intentions?
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Posting a question that was solved before being post.
4
Distribution of time to first answer in MathStackExchange?
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The Futuristic Gun Duel
26
How to combine two vectors into a matrix by columns?
21
Can you count the number of rectangles?
12
The translation of "I never said she stole my money."
10
Multi-Factorial and Series with Triple-factorial terms

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