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Isaac
  • Member for 13 years, 11 months
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PNG output from se-flair

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193
Is it true that $0.999999999\ldots=1$?
Jul 20, 2010
181
Why $\sqrt{-1 \cdot {-1}} \neq \sqrt{-1}^2$?
Jul 22, 2010
174
How to prove Euler's formula: $e^{i\varphi}=\cos(\varphi) +i\sin(\varphi)$?
Aug 28, 2010
147
Is there a general formula for solving Quartic (Degree $4$) equations?
Jul 27, 2010
101
Proof that the irrational numbers are uncountable
Jul 26, 2010
78
Can there be two distinct, continuous functions that are equal at all rationals?
Jul 22, 2010
75
Is there a formula to calculate the sum of all proper divisors of a number?
Feb 18, 2011
74
Where is the flaw in this "proof" that 1=2? (Derivative of repeated addition)
Jul 29, 2010
73
Proving that $1$- and $2D$ simple symmetric random walks return to the origin with probability $1$
Jul 23, 2010
66
Sum of the alternating harmonic series $\sum_{k=1}^{\infty}\frac{(-1)^{k+1}}{k} = \frac{1}{1} - \frac{1}{2} + \cdots $
Jul 26, 2010
Top Meta posts
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I quit. Here's why.
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Design Ideas for Mathematics Site
22
Happy First Birthday, M.SE!
21
Vote to Close as Exact Duplicate should Accept MathOverflow Question URLs
20
The use of the [algebra] tag
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112
Convert HTML entities to Unicode and vice versa
79
JavaScript break sentence by words
65
How to center content in a UIScrollView with contentOffset
64
Speeding up this fractal-generating code
60
Getting info from .ips crash report file