Recent content by ╔(σ_σ)╝

Using correlation coefficients as x in a regression?? I was reading an article in the Wall street journal and the author was using a rolling correlation coefficient, on a set of variables, as his predictor variable in a linear regression. Basically it was a uni-variate linear regression , y=...

Edit: Actually you should probably use k_{2} to establish the final epsilon then use k_{0}= max(k_1,k_2)

You used an incorrect equation. f_Y(y)=f_X(x)\cdot\left| \frac{dx}{dy}\right|. What you found was the PDF not the CDF. You have to integrate.

h(x) = 3*(e^sin(x + 2)) If f(x)= c*g(x) then f'(x)= c*g'(x) ( you can verify this by product rule). In this equation c= 3 and g(x) = e^sin(x+2). You are confusing H(x) = (3e)^sin(x+2) and h(x)= 3*e^sin(x+2). They are two different functions with two different derievatives.The answer you...

Can you post your solution attempt ?

Huh? Replace u(k-i) with M. You get 0.5^{i}M. The sum of 0.5^{i} is known using the geometric series formula. Anyway, forget that for now. What you actually need is to use is the fact that if u(k) -> 0 the there exist a k_{0} such that |u(k)| < \epsilon for all k > k_{0}. It is easy to...

Have you tried replacing u(k-i) by M, where M = max(u(k))? M exist because in the problem statement u(k) is bounded. Then use the sum of a geometric series formula.

Homework Statement Prove that any function f(x) can be approximated to any accuracy by a linear combination of sign functions as: f(x) ≈f(x_{0})+ \sum{[f(x_{i+1})-f(x_{i})]} \frac{1+ sgn(x -x_i)}{2} Homework Equations The Attempt at a Solution Looks like taylors theorem...

Labview is a very good software package worth learning. I would suggest you learn it especially if you are into instrementation and FPGAs.

I also found that after given infractions some mods do not respond to queries about it. It was the case with my last infraction. Apparently, I was "insulting" another member when I said that I have meet a few fools from a certain university. Not only was this not directed to any member, it was...

I use dropbox. It's pretty good.

But we won. :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-)

There is a saying "ones it's past 12 it's lunch time". I don't agree with it btw.

It's funny people talk about equal right and rights for the homos but yet they wouldn't allow polygamy.

Only 39 wives ? https://www.youtube.com/watch?v=zwM1ncuYAAg