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math.stackexchange.com

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math.stackexchange.com

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59 votes

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55 votes

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What is the chance to get a parking ticket in half an hour if the chance to get a ticket is 80% in 1 hour?

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52 votes

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52 votes

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51 votes

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Proof that ${\left(\pi^\pi\right)}^{\pi^\pi}$ (and now $\pi^{\left(\pi^{\pi^\pi}\right)}$) is a noninteger

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51 votes

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Proving the identity $\sum\limits_{k=1}^n {k^3} = \left(\sum\limits_{k=1}^n k\right)^2$ without induction

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49 votes

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49 votes

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48 votes

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The Best of Dover Books (a.k.a the best cheap mathematical texts)

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Why does mathematical convention deal so ineptly with multisets?

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Stack Exchange

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“The Egg:” Bizarre behavior of the roots of a family of polynomials.

Optimizing response times of an ambulance corp: short-term versus average

Different methods to compute $\sum\limits_{n=1}^\infty \frac{1}{n^2}$

Too old to start math

Can every proof by contradiction also be shown without contradiction?

Can't argue with success? Looking for “bad math” that “gets away with it”

List of Generalizations of Common Questions

Why can a Venn diagram for 4+ sets not be constructed using circles?

The unilateral removal of comments by Jeff Atwood

How do you respond to “I was always bad at math”?

A Graph Map of Math.SE

How can I find the surface area of a normal chicken egg?

Contest problem about convergent series

discrepancies between skills and ambitions

Should chat have TeX support?

What is the chance to get a parking ticket in half an hour if the chance to get a ticket is 80% in 1 hour?

Are there real-life relations which are symmetric and reflexive but not transitive?

Two curious “identities” on $x^x$,$e$,and $\pi$

Proof that ${\left(\pi^\pi\right)}^{\pi^\pi}$ (and now $\pi^{\left(\pi^{\pi^\pi}\right)}$) is a noninteger

Proving the identity $\sum\limits_{k=1}^n {k^3} = \left(\sum\limits_{k=1}^n k\right)^2$ without induction

Trigonometric sums related to the Verlinde formula

Why is 987654321/123456789 = 8.0000000729?

How are mathematicians taught to write with such an expository style?

The Best of Dover Books (a.k.a the best cheap mathematical texts)

Why does mathematical convention deal so ineptly with multisets?

How to make notes when learning a new topic

Software for drawing geometry diagrams

Surprisingly elementary and direct proofs

Proof that the Earth rotates?

Should unreadability or sloppiness of students' work be reflected in their evaluation?