Mathematics
Profile Activity
Meta user
Network profile
40,814
reputation
3
65
142

Julien

953
answers
3
questions
~1.7m
people reached
  • Member for 8 years, 1 month
  • 11,636 profile views
  • Last seen 5 hours ago

Communities (11)

Top Meta Posts
4
5

Top network posts

Top tags (202)

Score 914
Posts 200
Posts % 21
Score 727
Posts 137
Score 629
Posts 181
Score 521
Posts 125
Score 430
Posts 126
Score 338
Posts 78
View all tags →

Top posts (956)

All Questions Answers
Votes Newest
67 Prove $|e^{i\theta} -1| \leq |\theta|$ Nov 28 '13
47 Nice examples of groups which are not obviously groups Apr 15 '13
43 How to prove every closed interval in R is compact? Apr 21 '13
40 Change of basis matrix to convert standard basis to another basis Mar 25 '13
31 Can the matrices $A$ and $I+A$ have the same determinant? Feb 13 '13
31 If $d(x,y)$ is a metric, then $\frac{d(x,y)}{1 + d(x,y)}$ is also a metric Feb 20 '13
30 For what $n$ is $U_n$ cyclic? Feb 26 '13
29 Is the inverse of a symmetric matrix also symmetric? Mar 8 '13
26 How to prove $\det(e^A) = e^{\operatorname{tr}(A)}$? Mar 6 '13
23 The series $\sum\limits_{n=1}^\infty \frac n{\frac1{a_1}+\frac1{a_2}+\dotsb+\frac1{a_n}}$ is convergent Dec 10 '13
View all questions and answers →

Badges (210)

Gold

3

Rarest

Silver

65

Rarest

Bronze

142

Rarest

View all badges →