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Mathematics
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Yiyuan Lee

Second year Computer Science student @ National University of Singapore.

I also involve myself in Programming, Mathematics and Robotics.

And some anime.

And dota.

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Top posts (403) All Questions Answers | Votes Newest

542 Visually stunning math concepts which are easy to explain Mar 31 '14
425 Visually stunning math concepts which are easy to explain Apr 4 '14
36 How to prove $b=c$ if $ab=ac$ (cancellation law in groups)? Feb 22 '16
20 Product of logarithms, prove this identity. Mar 21 '14
16 If n is a positive integer, then $n^3 + 5n$ is divisible by $6$. Mar 10 '14
16 Sum of $1-\frac{2^2}{5}+\frac{3^2}{5^2}-\frac{4^2}{5^3}+…$ Jan 28 '16
16 Conjecture: Every prime number is the difference between a prime number and a power of $2$ Jul 20 '16
14 $f(550)$ if $f(11)=1$ and $f(a)f(b)=f(a+b)+f(a-b)$ Sep 8 '16
14 The sum of three consecutive cubes numbers produces 9 multiple Jul 7 '14
13 Finding closed form for $1^3+3^3+5^3+…+n^3$ Jun 26 '14
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