Caran-d'Ache

 9 Infinite Series $‎\sum\limits_{n=2}^{\infty}\frac{\zeta(n)}{k^n}$ 9 Evaluating $\sum_{n=1}^{\infty} {(-1)^n \cdot \frac{2^{2n-1}}{(2n+1)\cdot 3^{2n-1}}}$ 9 Calculate $\int 5^{x+1}e^{2x-1}\,dx$ 8 Is this a valid method of finding magnitude of complex fraction 7 “World's Hardest Easy Geometry Problem”

### Reputation (3,208)

 +10 Finding the better estimator of mu? +10 Finding $\int_{0}^{\infty}\frac{\cos(ax)}{(x^2 + 1)^2}\,dx$ +10 Non-normalized sinc function +10 Calculate $\int 5^{x+1}e^{2x-1}\,dx$

### Questions (4)

 10 Contour integration with branch points inside the contour. 3 The distribution of the condition number for complex Wishart matrices. 3 Conditions for changing the order of integration for contour integral. 3 Useful approximation of the pdf

### Tags (95)

 66 integration × 31 24 definite-integrals × 13 62 calculus × 28 21 real-analysis × 8 30 statistics × 24 15 probability-distributions × 16 30 sequences-and-series × 14 14 closed-form × 2 26 complex-analysis × 10 13 special-functions × 10