Mathematics
Profile Activity
Meta user
Network profile
6,905
reputation
3
28
53

Ian Mateus

Apparently, this user prefers to keep an air of mystery about them.

102
answers
26
questions
~248k
people reached
  • Brazil
  • Member for 9 years, 6 months
  • 1,725 profile views
  • Last seen Jun 12 '20 at 1:17

Communities (7)

Top network posts

Top tags (94)

Score 83
Posts 21
Posts % 16
Score 57
Posts 17
Score 45
Posts 16
Score 33
Posts 13
Score 30
Posts 12
Score 16
Posts 9
View all tags →

Top posts (128)

All Questions Answers
Votes Newest
150 Does a “cubic” matrix exist? Oct 16 '11
54 Is there any geometric way to characterize $e$? Jun 18 '12
34 Why does the series $\sum_{n=1}^\infty\frac1n$ not converge? Dec 27 '13
21 Mystery about $\sum_{n\geqslant 1}2^{-n!}$ May 5 '13
21 Is $\sqrt[3]{p+q\sqrt{3}}+\sqrt[3]{p-q\sqrt{3}}=n$, $(p,q,n)\in\mathbb{N} ^3$ solvable? Apr 27 '13
20 Rigorous proof that $\frac{1}{3} = 0.333\ldots$ Jun 13 '12
17 $\sqrt[2]{1+\sqrt[3]{1+\sqrt[4]{1+\cdots}}}\approx 1.5176001678…$ Jul 30 '13
16 Evaluating $\sum_{k=1}^{\infty}\frac{\sin\left(k\theta\right)}{k^{2u+1}}$ with multiple integrals Jan 16 '13
16 Is this of any real importance to the mathematical scientific community? Dec 30 '13
15 Find all positive integers $n$ s.t. $3^n + 5^n$ is divisible by $n^2 - 1$ Dec 27 '13
View all questions and answers →

Badges (84)

Gold

3

Rarest

Silver

28

Rarest

Bronze

53

Rarest

View all badges →

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.