263 reputation
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location Victoria, Canada
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visits member for 3 years, 8 months
seen Dec 16 at 5:09

Nov
11
comment Probability of deviation of sample distribution, why absolute difference?
@Danny Do you see how to the uninitiated your argument is circular? We check because we want to check is not clarifying things for me. Try this: what would we be calculating if we didn't use absolute value signs?
Nov
10
comment Probability of deviation of sample distribution, why absolute difference?
@Danny yes they are adding that, but the question is why. In my question I put "Aren't we only concerned with the sample mean being $\geq$ 5.027?" Why check if it goes below by 0.027?
Nov
7
asked Probability of deviation of sample distribution, why absolute difference?
Oct
22
comment The complexity of Depth First Search
The question is about the asymptotic performance of the algorithm. You need to read about 'big O', and the wikipedia article on this subject is a decent place to go. Then, see if you can answer some simpler questions, such as what is the complexity of bubble sort. Finally, tackle DFS!
Oct
22
accepted What is wrong with my limit work here?
Oct
22
accepted Lost in second derivative simplification
Oct
11
comment Prove that all subsequential limits have been found
@Henry yes it appears I was allowed to assume $a_n$ only takes 5 values.
Oct
11
comment Prove that all subsequential limits have been found
@Lund-Nguyen exhaustive was meant to mean '$S$ is the set of all possible subsequential limits' not just a subset, or a wrong set either.
Oct
11
accepted Prove the difference of roots is less than or equal to the root of the difference
Oct
11
asked Prove that all subsequential limits have been found
Sep
28
comment Prove the difference of roots is less than or equal to the root of the difference
I know we can suppose a >= b without loss of generality (since we are using absolute values). However no, I don't see how to move past this part algebraically. I get $-2\sqrt{ab} \leq -2b \to 4ab \leq 4b^2 \to a \leq b$ still not sure what this gets me...
Sep
28
asked Prove the difference of roots is less than or equal to the root of the difference
Sep
10
awarded  Nice Question
Jul
2
awarded  Curious
Apr
22
accepted Markov transition matrix for given problem
Apr
22
revised Markov transition matrix for given problem
added 261 characters in body
Apr
22
asked Markov transition matrix for given problem
Dec
10
accepted Is there a common name for the surface z = xy?
Dec
9
comment Is there a common name for the surface z = xy?
@Henning Sorry the "standard saddle" claim comes from wikipedia en.wikipedia.org/wiki/Saddle_surface
Dec
9
comment Is there a common name for the surface z = xy?
@John oops thank you!