17 No continuous function switches $\mathbb{Q}$ and the irrationals 12 How to calculate $\lim_{x \to 0}\left(\frac1{x} + \frac{\ln(1-x)}{x^2}\right)$? 12 Example of two functions that are equal almost everywhere? 12 How to show $\lim_{n \to \infty} a_n = \frac{ [x] + [2x] + [3x] + \dotsb + [nx] }{n^2} = x/2$? 11 When does $az + b\bar{z} + c = 0$ represent a line?

Reputation (6,165)

 +10 Every integer is congruent to the sum of its digits mod 9 +15 Why are rings called rings? +5 On the equality case of the Hölder and Minkowski inequalites +5 A Haar measure via the Lebesgue measure on $\Bbb R^d$

Questions (32)

 196 Why are rings called rings? 34 On the equality case of the Hölder and Minkowski inequalites 18 How can I compute the integral $\int_{0}^{\infty} \frac{dt}{1+t^4}$? 13 A kind of converse of Lagrange's Theorem 12 Integration of powers of the $\sin x$

Tags (87)

 141 real-analysis × 44 32 integration × 19 98 measure-theory × 36 26 functions × 4 47 analysis × 24 23 linear-algebra × 13 35 calculus × 16 20 complex-numbers × 6 35 limits × 6 19 metric-spaces × 6