Mahan

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400 reputation

18

bio	website
	location	Tehran
	age	18
visits	member for	2 years, 1 month
	seen	Mar 13 at 6:48
stats	profile views	167

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12 Questions

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14	Solutions of $q=\frac{x}{y} +\frac{y}{z} + \frac{z}{x}$ s.t. $q \geq 3$
11	Square root of an integer has only even digits
9	Nested Radicals: $\sqrt{a+\sqrt{2a+\sqrt{3a+\ldots}}}$
6	Solve $x^3 +1 = 2y^3$
4	every mapping from $\mathbb{S}^2$ to $\mathbb{R}$ has three mutually perpendicular vector with same value

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400 Reputation

+5	Nested Radicals: $\sqrt{a+\sqrt{2a+\sqrt{3a+\ldots}}}$
+10	Which $A\subseteq\mathbb{N}\cup\{0\}$ satisfy $\bigg(\sum\limits_{a\in A}x^a\bigg)\prod\limits_{a\in A} (1+x^{2^a})=\dfrac{1}{1-x}$ for all $\|x\|<1$?
+10	How to compute the projection $P(v)$ of a vector to a subspace? How to find the matrix of $P$?
+5	Square root of an integer has only even digits

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0 Answers

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18 Tags

0 number-theory × 4	0 limit
0 linear-algebra × 2	0 calculus
0 matrices × 2	0 rational-numbers
0 combinatorics × 2	0 ergodic-theory
0 diophantine-equations × 2	0 decimal-expansion

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2 Accounts

$Mathematics Stack Exchange$	Mathematics	400 rep	18
	Stack Overflow	101 rep

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