Reputation
4,110
Next privilege 5,000 Rep.
Approve tag wiki edits
Badges
2 11 30
Impact
~54k people reached

Apr
26
comment Hausdorff Dimension Question
Is this a homework?
Apr
25
comment Matrix equation
Btw, you may handle the cases seperately if some of the $a$'s equal zero. If $a_{11}=0$, then $b_{11}$ has no control at all. You may repeat the above reasoning and get all possible solutions by choosing only one "free-variable" $b_{31}=t$. Similarly to any other $a$ being zero. If two $a$'s are zero, then those corresponding $b$'s have no control and can be anything. The remaining $b$ must be zero though. If all $a$'s are zero, then all values for $b$'s satisfy the equation.
Apr
25
revised What is $\limsup\limits_{n\to\infty} \cos (n)$, when $n$ is a natural number?
added latex symboling.
Apr
25
suggested approved edit on What is $\limsup\limits_{n\to\infty} \cos (n)$, when $n$ is a natural number?
Apr
25
comment Matrix equation
Yeah, that's usually the case when you have more unknown variables than equations that control the possible solutions.
Apr
25
comment Orthogonal basis for $P_{2}(\mathbb{R})$
There are some good free online integration tutor materials if you google, and most definitely some excellent textbooks available too. Too bad I learned these things from textbooks of my native language (which isn't English), so I don't know any books of this topic to recommend. :/
Apr
25
answered Matrix equation
Apr
25
comment Orthogonal basis for $P_{2}(\mathbb{R})$
If you have indefinite integral, then $\int xdx=\frac{x^{2}}{2}+C$, where $C$ is a constant. And yes to second question. Step by step it comes as: $\int_{0}^{1}x^{2}dx=/_{0}^{1}\frac{1}{3}x^{3}=\frac{1}{3}-0=\frac{1}{3}$.
Apr
25
answered Monotone expected value
Apr
25
answered Orthogonal basis for $P_{2}(\mathbb{R})$
Apr
25
answered How do you prove that the 3-sphere is connected?
Apr
25
revised Consider $I_{\epsilon}=\oint_{C_{\epsilon}} z^{\alpha}f(z)dz$
Corrected latex symboling
Apr
25
suggested approved edit on Consider $I_{\epsilon}=\oint_{C_{\epsilon}} z^{\alpha}f(z)dz$
Apr
25
comment Find the formula of the following expression:
What have you tried so far? Also, is this a homework assignment?
Apr
25
answered Finding a Measurable Function
Apr
25
comment does there exist a discrete set whose image is dense
For the proof of $m+n\sqrt{2}$ being dense in $\mathbb{R}$, you can consult this topic: math.stackexchange.com/questions/73262/…
Apr
24
revised Probability of land ownership
Added latex math-symboling.
Apr
24
suggested approved edit on Probability of land ownership
Apr
24
comment Probability of land ownership
Do you consider in the "landless" people also those who have history of not owning a land in the past (but who may, currently own one)?
Apr
24
suggested rejected edit on Let $ a_ {n} $ a sequence such that $ a_ {n +1} = 2 ^ {a_ {n}}$