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seen Jul 22 at 0:17

Jun
10
asked Limit of two variables, proposed solution check
Jun
10
comment How to evaluate $ \lim_{(x,y)\to(0,0)}\frac{y^2\sin^2x}{x^4+y^4} $
Thanks, Robert. That makes sense. So to my earlier point, is it sufficient to say that since the limit depends on the value of alpha, the limit cannot exist?
Jun
10
comment How to evaluate $ \lim_{(x,y)\to(0,0)}\frac{y^2\sin^2x}{x^4+y^4} $
Ok, I did that. I notice that the limit is dependent on the value of alpha which means the limit does not exist. Is this sufficient? Once I state this, what is the point of using sin(x)/x -> 1?
Jun
10
asked How to evaluate $ \lim_{(x,y)\to(0,0)}\frac{y^2\sin^2x}{x^4+y^4} $
May
26
accepted Find cumulative, marginal densities, moments for $f(x)=2,\le y \le x \le 1$ (multivariate)
May
26
comment Find cumulative, marginal densities, moments for $f(x)=2,\le y \le x \le 1$ (multivariate)
I really appreciate you taking the time to answer as thoroughly as you did. Thanks for the help! I think that should be enough to get me started on my own for now.
May
26
asked What is the Jacobian and what is its importance relative to the constant for the multivariate distribution?
May
26
asked Find cumulative, marginal densities, moments for $f(x)=2,\le y \le x \le 1$ (multivariate)
May
25
accepted When deriving the multivariate normal distribution, please explain this limit
May
25
comment When deriving the multivariate normal distribution, please explain this limit
Thanks for the explanation. Although, what's the point of having (1/(delta x * delta y)) in the limit? Wouldn't the difference still go to zero without it?
May
25
asked When deriving the multivariate normal distribution, please explain this limit
May
22
accepted Why is the PDF of this multivariate student t model $f(l)=Cl^{m-1}e^{-l^2/2}$
May
22
comment Why is the PDF of this multivariate student t model $f(l)=Cl^{m-1}e^{-l^2/2}$
Very informative, thank you.
May
22
asked Why is the PDF of this multivariate student t model $f(l)=Cl^{m-1}e^{-l^2/2}$
May
21
accepted What is the proper way to compare discrete set of data to a continuous probability distribution?
May
21
asked What is the proper way to compare discrete set of data to a continuous probability distribution?
May
21
accepted How would one rescale the variance and standard deviation of a set of data?
May
21
comment How would one rescale the variance and standard deviation of a set of data?
I knew that it would be something trivial like this. Can you show why this works?
May
21
asked How would one rescale the variance and standard deviation of a set of data?
May
15
revised Does a quadratic necessarily have a root in this interval?
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