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location Brazil
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visits member for 3 years, 7 months
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Loved by math. Math loved by me.


Sep
24
awarded  Autobiographer
Aug
28
awarded  Self-Learner
Jul
8
awarded  Nice Question
Jul
2
awarded  Curious
Jun
3
revised Trying to solve this simple algebra problems: $\frac{5 + 8x}{3 + 2x} = \frac{45 - 8x}{13 - 2x}$
edited body
May
29
awarded  Popular Question
May
27
comment Statements with rare counter-examples
The best example that I know is the Gauss conjecture about two curves, that Liouville proved he was wrong. The number that proves Gauss was wrong is estimated to be ridiculously long. Some day I wrote an answer =)
Apr
27
awarded  Yearling
Apr
24
awarded  Popular Question
Apr
8
comment Visually deceptive “proofs” which are mathematically wrong
This is about Srinavasa Ramanujan, no?
Mar
8
awarded  Popular Question
Feb
24
awarded  Nice Question
Jan
28
comment Can the golden ratio accurately be expressed in terms of e and $\pi$
Incridible. So fun, but so real. Huhu. Anyway, was a intersting question.
Jan
21
comment Results in graph theory proved using other areas of math, and vice versa
Looks like if you prove that a graph is hamiltonian in a polynomial time you can prove P=NP (a million dollar problem of clay institute).
Jan
8
awarded  Notable Question
Sep
17
comment This is stupid but I have a bad cold with cough
Looks like a kind of last fermat jagy theorem showing up^^
Sep
3
comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
BeautifulHandsome^^
Jun
5
comment Real world applications of prime numbers?
Interesting, lol, maybe I will do something like this some day.
Jun
5
comment Does a non-trivial solution exist for $f'(x)=f(f(x))$?
Why the first integral transformation holds, can you give me a reference?
May
9
revised How to express $\cos(\frac{x}{k})$ and $\sin(\frac{x}{k})$ in terms of $\cos(x)$ and $\sin(x)$, respectively?
added 184 characters in body