glebovg

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2,303 reputation

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bio	website	math.stackexchange.com/users/…
	location	Moscow, Russia
	age	23
visits	member for	10 months
	seen	May 20 at 4:05
stats	profile views	516

The riddle does not exist. If a question can be put at all, then it can also be answered.

Wittgenstein, Ludwig

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123 Answers

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7	How can I evaluate $\sum_{n=0}^\infty (n+1)x^n$
6	Proof for exact differential equations shortcut?
4	Showing $\int_{0}^{\infty} \frac{\sin{x}}{x} \ dx = \frac{\pi}{2}$ using complex integration
4	Showing $\frac{\sin x}{x}$ is NOT Lebesgue Integrable on $\mathbb{R}_{\ge 0}$
3	Partial sum of an alternating series: $2 - \frac{4}{3} + \frac{8}{9} - \cdots + \frac{(-1)^{20}2^{21}}{3^{20}}$

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2,303 Reputation

-2	GRE Math Subject Test
+10	How can I evaluate $\sum_{n=0}^\infty (n+1)x^n$
+10	Gradient function of $y=5e^{3x}-6e^{-6x}$
-2	Treating indices as if they were exponents

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27 Questions

votes activity newest

9	Two paradoxes: $\pi = 2$ and $\sqrt 2 = 2$ [duplicate]
6	Umbral calculus with negative indices (and powers)
6	Undergraduate Research
4	Undergrad publishing [duplicate]
4	$\int_0^1 {\frac{{\ln (1 - x)}}{x}}$ without power series

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98 Tags

32 calculus × 28	13 limit × 10
22 homework × 23	9 discrete-mathematics × 6
16 sequences-and-series × 12	7 complex-analysis × 4
15 differential-equations × 11	7 analysis × 3
14 integral × 11	6 probability × 13

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5 Accounts

$Mathematics Stack Exchange$	Mathematics	2,303 rep	1424
	Philosophy	184 rep	14
	Physics	171 rep	7
	Academia	148 rep	6
	Science Fiction & Fantasy	111 rep	5

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314 Votes Cast

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