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Paul

Antarctica

phdcomics.com/comics.php

Age: 93

MATH is a wonderful thing...

MATH is a really cool thing..

So get off your act lets do some MATH...

MATH, MATH, MATH, MATH, MATH...

http://www.youtube.com/watch?v=aa8U0nL-KXg

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Top Questions
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27
How to calculate $z^4 + \frac1{z^4}$ if $z^2 + z + 1 = 0$?
math.stackexchange.com

21
Example of an infinite sequence of irrational numbers converging to a rational number?
math.stackexchange.com

12
Prove: $\binom{n}{k}^{-1}=(n+1)\int_{0}^{1}x^{k}(1-x)^{n-k}dx$ for $0 \leq k \leq n$
math.stackexchange.com

11
What's the connection between derivatives and boundaries?
math.stackexchange.com

11
Solving a $1^\infty$ indeterminate form.
math.stackexchange.com

8
Determinant of a specially structured matrix
math.stackexchange.com

8
How to prove that if $a\equiv b \pmod{2n}$ then $a^2\equiv b^2 \pmod{2^2n}$
math.stackexchange.com

8
Complex number inequality?
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8
On the Use of the Topology on Tangent Bundles
math.stackexchange.com

7
Determinant of a specific circulant matrix, $A_n$
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7
Proving Integral Inequality
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7
find constants using limits
math.stackexchange.com

7
Simple divisibility proof
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7
Evaluating $\sum_{n=1}^\infty \frac{2^{2n-1}}{5^{n+1}}$
math.stackexchange.com

7
Is the cycle graph $C_n$ defined only for $n \ge 3$?
math.stackexchange.com

6
How to prove $f(n) := \frac{1}{2}(a+(f(n-1))^2) ≤ 1-\sqrt{1-a}$
math.stackexchange.com

6
fundamental group of the union of two subsets
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6
Show $\lim \limits_{n \to \infty} \frac{a_{n+1}}{a_n} = \|f\|_{\infty}$ for $f \in L^{\infty}$
math.stackexchange.com

6
Question Regarding The Power Series For $e^x$
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6
Finding the $n$-th derivatives of $x^n \ln x$ and $\frac{\ln x}{x}$.
math.stackexchange.com

6
Evaluating $\int_0^1 \max (x, 1-x) dx$
math.stackexchange.com

6
$\Omega=x\;dy \wedge dz+y\;dz\wedge dx+z\;dx \wedge dy$ is never zero when restricted to $\mathbb{S^2}$
math.stackexchange.com

6
Necessary and sufficient conditions for $||f||_p = ||f||_q$ with $p \neq q$
math.stackexchange.com

6
integral involving a periodic function
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6
{$f_n(x)$} is defined by $f_{n+1}(x)=\int_{0}^{x}f_n(t)dt$, Prove: $\sum_{1}^{\infty}f_n(x)$ converges and is differentiable in $(0,1)$.
math.stackexchange.com

6
Lebesgue Integration
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6
How does one prove $\sqrt{2}|z|\geq |\operatorname{Re}z|+|\operatorname{Im}z|$ holds for all $z\in \mathbb{C}?$
math.stackexchange.com

5
Show the torus of revolution has no umbilic points
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5
Two $L^p$ space problems
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5
Classical texts that should not be missing from any shelf
math.stackexchange.com

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