Nikita Evseev
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 7 Surprising identities / equations 3 Complex numbers - finding minimum value 3 There exists a rational sequence that converges to $\sqrt3$ 3 Parametrization for the ellipsoids 2 Evaluating the definite integral of a trig function via complex analysis methods.

### Reputation (714)

 +5 $\partial_x + 2y\partial_z$, $\partial_y - 2x\partial_z$ exist, but $\partial_t$ doesn't +10 Test the uniform convergence integral $\int_1^\infty\frac{ln^\alpha x}{x}\sin(x)\, dx$ +5 Test the uniform convergence integral $\int_1^\infty\frac{ln^\alpha x}{x}\sin(x)\, dx$ +10 Convergent series and comparison test

### Questions (20)

 5 Integral in $\mathbb R^3$ and $\Gamma$-function 5 Find the image set of function $\frac{\sin(\pi x)}{x(1-x)}$ 3 Find rank of the matrix $a_{ij}=(i-j)^2$, $i,j=1,\dots, n$ 3 Compute $\int\sin(x^2)\, dx + \int \sqrt{\arcsin t}\, dt$ 2 Maximal subset $\{1,\dots,256\}$ with no pairs $x = 2y$

### Tags (50)

 6 calculus × 18 3 complex-numbers × 2 4 integration × 6 3 differential-geometry × 2 4 real-analysis × 6 2 linear-algebra × 6 3 improper-integrals × 3 2 exponentiation × 2 3 complex-analysis × 2 2 algebra-precalculus × 2

### Accounts (10)

 Mathematics 714 rep 520 TeX - LaTeX 160 rep 5 MathOverflow 135 rep 4 Quantitative Finance 124 rep 2 Stack Overflow 101 rep 1