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 Yearling
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Aug
30
comment Is it possible disconnected graph has euler circuit?
Note that wikipedia says that Eulerian graphs may be disconnected not that every disconnected graph is Eulerian...
Aug
22
revised A false conjecture by Goldbach
added 9 characters in body
Aug
22
answered A false conjecture by Goldbach
Jul
14
reviewed Approve Prove that $f(x)$ is continuous at $a$
Jul
14
reviewed Approve Pascal's triangle
Jun
5
answered Hamiltonian graphs of integers $n$
Jun
4
answered How to show $ {\pi}^e < e^{\pi}$ using the decreasing character of $x^{\frac{1}{x}}$, when $x >0$?
Jun
3
reviewed Approve Calculus I: Find $y'$ equation: $x^4y+\sqrt{xy}=5$
May
19
reviewed Approve Proving $f(t) = \sum\limits_{n=1}^{\infty}\frac{\cos(3^{n}t)}{3^{n\alpha}}$ is Lipschitz
May
11
comment Three planes in general position, one point in each, construct sections
How are the planes given? Can we find the intersection point of a line an a plane?
May
6
comment Simplest proof that some number is transcendental?
There are only countably many algebraic numbers...
May
6
answered Common tangent to a circle and ellipse
May
1
reviewed Approve Find the matrix $A$ such that the following is true:$ T_1(T_2(\mathbf{x})) = A\mathbf{x}$?
Apr
27
comment Geometric Construction Rhombus
Euclid Book 1 Proposition 2 shows how to construct the segment.
Apr
18
comment How to evaluate $\lim _{n\to \infty }\:\int _{1/(n+1)}^{1/n}\:\frac{\sin\left(x\right)}{x^3}\:dx$?
The correct answer is $1$.
Apr
18
answered How to evaluate $\lim _{n\to \infty }\:\int _{1/(n+1)}^{1/n}\:\frac{\sin\left(x\right)}{x^3}\:dx$?
Apr
18
comment Does every integer occur finitely many times and in what positions in Pascal's triangle?
You must restrict to $n > 1$ if you want the statement to be true...
Apr
18
comment Any hint about solving this monster determinant?
oeis.org/A052182
Apr
18
awarded  Yearling
Apr
15
comment Casting out of linearly dependent vectors from a set
$S = \{ \mathbf{0} \}$ is a linearly dependent set of vectors...