Mathematics
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Isaac
  • Member for 13 years, 4 months
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All Questions Answers
Score Newest
answer
193
Is it true that $0.999999999\ldots=1$?
Jul 20, 2010
answer
180
Why $\sqrt{-1 \cdot {-1}} \neq \sqrt{-1}^2$?
Jul 22, 2010
answer
172
How to prove Euler's formula: $e^{i\varphi}=\cos(\varphi) +i\sin(\varphi)$?
Aug 28, 2010
answer
146
Is there a general formula for solving Quartic (Degree $4$) equations?
Jul 27, 2010
answer
98
Proof that the irrational numbers are uncountable
Jul 26, 2010
answer
75
Can there be two distinct, continuous functions that are equal at all rationals?
Jul 22, 2010
question
74
Proving that $1$- and $2D$ simple symmetric random walks return to the origin with probability $1$
Jul 23, 2010
answer
73
Is there a formula to calculate the sum of all proper divisors of a number?
Feb 18, 2011
answer
71
Where is the flaw in this "proof" that 1=2? (Derivative of repeated addition)
Jul 29, 2010
question
63
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
21
66
50
I quit. Here's why.
22
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
Top network posts
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111
Convert HTML entities to Unicode and vice versa
78
JavaScript break sentence by words
65
How to center content in a UIScrollView with contentOffset
63
Speeding up this fractal-generating code
61
Getting info from .ips crash report file

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