Mathematics
Meta user
Network profile
30,600
reputation
12
86
128

Isaac

PNG output from se-flair

464
answers
20
questions
~2.9m
people reached
  • 2718.us
  • Member for 9 years, 2 months
  • 5,318 profile views
  • Last seen Sep 16 at 21:17

Communities (48)

Top Meta Posts
21
66

Top network posts

Top tags (156)

Score 732
Posts 129
Posts % 27
Score 566
Posts 143
Score 435
Posts 71
Score 302
Posts 77
Score 199
Posts 44
Score 141
Posts 45
View all tags →

Top posts (484) All Questions Answers | Votes Newest

160 Is it true that $0.999999999\dots=1$? Jul 20 '10
140 Why $\sqrt{-1 \times {-1}} \neq \sqrt{-1}^2$? Jul 22 '10
132 How to prove Euler's formula: $e^{i\varphi}=\cos(\varphi) +i\sin(\varphi)$? Aug 28 '10
117 Is there a general formula for solving 4th degree equations (quartic)? Jul 27 '10
77 Proof that the irrational numbers are uncountable Jul 26 '10
59 What are some examples of a mathematical result being counterintuitive? May 2 '12
58 Where is the flaw in this “proof” that 1=2? (Derivative of repeated addition) Jul 29 '10
58 Proving that 1- and 2-d simple symmetric random walks return to the origin with probability 1 Jul 23 '10
56 Can there be two distinct, continuous functions that are equal at all rationals? Jul 22 '10
55 Is there a formula to calculate the sum of all proper divisors of a number? Feb 18 '11
View all questions and answers →

Badges (226)

Gold

12

Rarest

Silver

86

Rarest

Bronze

128

Rarest

View all badges →