Dan Brumleve

less info

network profile

5,240 reputation

1243

bio	website	facebook.com/jdb1729
	location	Champaign, IL
	age	34
visits	member for	2 years, 10 months
	seen	May 28 at 1:05
stats	profile views	5,691

Amateur mathematician, professional software engineer. Interested in all kinds of math, becoming a better mathematician, and helping others do the same.

email: jdb1729 (at) gmail.com

summary answers questions tags badges favorites bounties reputation activity

139 Answers

votes activity newest

98	Why can you turn clothing right-side-out?
17	Which one result in maths has surprised you the most?
15	Divisibility of large number
13	Is a prime factor of a number always less than its square root?
12	Are sines of primes dense in $[-1,1]?$

view more

5,240 Reputation

+10	Why is $\zeta(2) = \frac{\pi^2}{6}$ almost equal to $\sqrt{e}$?
+10	Is there a function that only generates primes?
+10	Why can you turn clothing right-side-out?
+5	How to prove there are an infinite number of squarefree numbers of the form $2^p-1$?

view more

38 Questions

votes activity newest

48	What is the importance of the Collatz conjecture?
18	What is the simplest way to prove that the logarithm of any prime is irrational?
14	What are some examples of theories stronger than Presburger Arithmetic but weaker than Peano Arithmetic?
13	How to prove that $p-1$ is squarefree infinitely often?
13	Can multiplication be defined in terms of divisibility?

view more

107 Tags

102 general-topology × 4	28 real-analysis × 12
98 algebraic-topology × 2	23 probability × 13
59 prime-numbers × 24	15 graph-theory × 9
55 number-theory × 26	15 quantitative-aptitude
37 elementary-number-theory × 20	13 riemann-zeta × 4

view more

16 Accounts

$Mathematics Stack Exchange$	Mathematics	5,240 rep	1243
	Philosophy	426 rep	39
	Physics	278 rep	113
	Theoretical Computer Science	248 rep	17
	Area 51	201 rep	2

35 Badges

recent class name

Nice Question × 7	Suffrage
Nice Answer × 7	Investor
Informed	Talkative
Custodian × 6	Enlightened × 3
Altruist	Yearling × 2

view more

0 Active bounties

active offered earned

This user has no active bounties

781 Votes Cast

all time			by type
726	up		357	question
55	down		424	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 Christianity Arqade (gaming) Bicycles Role-playing Games more (21)	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 2013.6.19.749