Weltschmerz

less info

network profile

2,915 reputation

416

bio	website
	location
	age
visits	member for	2 years, 9 months
	seen	2 days ago
stats	profile views	422

Old and slow undergraduate mathematics student.

summary answers questions tags badges favorites bounties reputation activity

51 Answers

votes activity newest

10	Proof by contradiction: $r - \frac{1}{r} =5\Longrightarrow r$ is irrational?
9	Finding an angle within an 80-80-20 isosceles triangle
8	How can you find the complex roots of i?
8	Finding the maximum cardinality of a set
6	How to show that $x \mapsto d(x,f(x))$ is continuous for a continuous $f$?

view more

2,915 Reputation

+5	Necessarily a field between a field and its algebraic extension
+5	A polynomial determined by two values
+10	Convergence domain: $\{(z,w):\|z\|^2+\|w\|^2 < 1\}$
+10	Finding all normal subgroups of a group

view more

45 Questions

votes activity newest

16	Finite number of subgroups $\Rightarrow$ finite group
10	A polynomial determined by two values
10	combinatorics olympiad problem - sort out a schedule
9	(Olympiad) Minimum number of pairs of friends.
9	Necessarily a field between a field and its algebraic extension

view more

68 Tags

29 homework × 10	12 elementary-number-theory × 3
24 linear-algebra × 12	12 proof-strategy × 2
16 discrete-mathematics × 3	12 geometry × 2
14 matrices × 4	11 general-topology × 5
13 algebra-precalculus × 6	10 calculus × 13

view more

5 Accounts

$Mathematics Stack Exchange$	Mathematics	2,915 rep	416
	Physics	128 rep	3
	Super User	118 rep	3
	Stack Overflow	101 rep
	Linguistics	101 rep

16 Badges

recent class name

Nice Question × 3	Self-Learner
Nice Answer × 2	Talkative
Yearling × 2	Enthusiast
Constituent	Organizer
Promoter	Critic

view more

0 Active bounties

active offered earned

This user has no active bounties

216 Votes Cast

all time			by type
213	up		105	question
3	down		111	answer

Technology			Life / Arts	Culture / Recreation	Science	Other
Stack Overflow Server Fault Super User Web Applications Ask Ubuntu Webmasters Game Development TeX - LaTeX	Programmers Unix & Linux Ask Different (Apple) WordPress Answers Geographic Information Systems Electrical Engineering Android Enthusiasts IT Security	Database Administrators Drupal Answers SharePoint User Experience Mathematica more (14)	Photography Science Fiction & Fantasy Seasoned Advice (cooking) Home Improvement more (13)	English Language & Usage Skeptics Mi Yodeya (Judaism) Travel Arqade (gaming) Bicycles Role-playing Games more (22)	Mathematics Cross Validated (stats) Theoretical Computer Science Physics more (7)	Stack Apps Meta Stack Overflow Area 51 Stack Overflow Careers

site design / logo © 2013 stack exchange inc; user contributions licensed under cc-wiki with attribution required

rev 2013.5.23.698