current community
chat
MathOverflow
MathOverflow Meta
your communities
Sign up
or
log in
to customize your list.
more stack exchange communities
company blog
Stack Exchange
Inbox
Reputation and Badges
sign up
log in
tour
help
Tour
Start here for a quick overview of the site
Help Center
Detailed answers to any questions you might have
Meta
Discuss the workings and policies of this site
MathOverflow
Questions
Tags
Users
Badges
Unanswered
Ask Question
Profile
Activity
Network Profile
171
reputation
2
Robert Israel
Apparently, this user prefers to keep an air of mystery about them.
2
answers
0
questions
~2k
people reached
math.ubc.ca
Member for
4 years, 8 months
245 profile views
Last seen
Oct 20 at 7:20
Communities
(4)
Mathematics
185.1k
185.1k
8
112
299
MathOverflow
171
171
2
Mathematica
131
131
1
Stack Overflow
86
86
3
Top Network Posts
273
Is there another simpler method to solve this elementary school math problem?
85
Slice of pizza with no crust
80
Help find hard integrals that evaluate to $59$?
76
The last digit of $2^{2006}$
75
Is this way of teaching how to solve equations dangerous somehow?
50
Is 128 the only multidigit power of 2 such that each of its digits is also a power of 2?
41
$\sin 1^\circ$ is irrational but how do I prove it in a slick way? And $\tan(1^\circ)$ is .....
View more network posts →
Top Tags
(5)
symmetry
Score
6
Posts
1
oc.optimizationcontrol
Score
6
Posts
1
realanalysis
Score
1
Posts
1
ca.analysisandodes
Score
1
Posts
1
na.numericalanalysis
Score
1
Posts
1
Top Posts
(2)
All
Questions
Answers

Votes
Newest
6
When does symmetry in an optimization problem imply that all variables are equal at optimality?
mar 20 '11
1
Systems of ODEs that fulfill a matrix relationship at steady state
nov 24 '14
Badges
(2)
Gold
—
Silver
—
Bronze
2
Rarest
Teacher
mar 21 '11
Supporter
nov 24 '14
MathOverflow works best with JavaScript enabled