Patrick Li
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### Answers (60)

 108 How do you find the center of a circle with a pencil and a book? 7 What sequence has this property? 6 How to prove that the limit is max(0,x)? 5 How to find a limit of this sequence? 5 Prime, followed by the cube of a prime, followed by the square of a prime. Other examples?

### Reputation (2,641)

 +10 Book for Markov Chain Monte Carlo methods +15 How to do integral $\int_{-\infty}^{\infty} x^4 e^{-x^2/2}dx$ +10 How do you find the center of a circle with a pencil and a book? +5 Integral evaluation $\int_{-\infty}^{\infty}\frac{\cos (ax)}{\pi (1+x^2)}dx$

### Questions (10)

 12 How to do integral $\int_{-\infty}^{\infty} x^4 e^{-x^2/2}dx$ 9 Integral evaluation $\int_{-\infty}^{\infty}\frac{\cos (ax)}{\pi (1+x^2)}dx$ [duplicate] 7 Example that $\int |f(x)| dx=\infty$ but $\int |f(x)|^2 dx <\infty$ 3 Algorithm to find the optimal setup 3 Integration on a sphere

### Tags (48)

 108 puzzle 11 real-analysis × 3 108 recreational-mathematics 11 limits × 2 20 probability × 13 10 algebra-precalculus × 4 13 sequences-and-series × 5 8 integration × 10 12 calculus × 6 7 statistics × 10

### Accounts (19)

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### Votes Cast (563)

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538 up 201 question
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