User dan_fulea - Mathematics Stack Exchange

Profile Activity

Network Profile

dan_fulea

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

251 answers

0 questions

~16k people reached

Member for 5 months
360 profile views
Last seen 1 hour ago

Top Tags (210)

View all tags →

Top Posts (251) All Questions Answers | Votes Newest

20 A conjecture related to a circle intrinsically bound to any triangle Jul 4

10 A ring such that $(a+b)^2=a^2+b^2$ and $(a+b)^3=a^3+b^3$ Sep 17

9 alternate deletion of integers between 1 and 128, which is the last one? Aug 23

7 Which method to use to integrate this function? Sep 11

6 Descartes principal imaginary roots Aug 4

6 Simple proof that if $A^n=I$ then $\mathrm{tr}(A^{-1})=\overline{\mathrm{tr}(A)}$ May 4

6 Evaluating the complex integral $\int_{0}^{\infty} \frac {\sin (\ln x) dx }{x^2 + 4} $ Jun 14

5 $\mathbb{Q}(\sqrt2)\otimes_\mathbb{Q} \mathbb{Q}(\sqrt2)$ isn't a field. May 3

5 Can I prove that a solution of $a^2-2b^2=p$ with $1\le b<\sqrt{p}$ always exists? May 24

5 Easy ways to calculate matrix exponential of a particular $4\times 4$ matrix Aug 5

View all questions and answers →

Badges (16)

Gold 1

Rarest

Fanatic Jul 21

Silver 3

Rarest

Enthusiast May 12
Enlightened × 2 Sep 21

Bronze 12

Rarest

Mortarboard Jul 4
Revival × 2 Jun 1
Caucus Jul 31

View all badges →

Mathematics Stack Exchange works best with JavaScript enabled