8,078 reputation
825
bio website linkedin.com/in/gt6989b
location New York, NY
age 36
visits member for 3 years, 4 months
seen 2 hours ago

2d
awarded  Popular Question
Jan
28
comment Find the points where the function is continuous
Notice that $X$ is discrete. Let $x \in X$. What happens at $x$? What about at $x - \epsilon$ if you know $x -\epsilon \not \in X$?
Jan
26
comment Quickest way to determine a polynomial with positive integer coefficients
:-) A hi from one theoretician to another -- in theory beautiful but practically absolutely useless :-) +1
Jan
23
comment Quickest way to determine a polynomial with positive integer coefficients
I see the idea. But how would one practically determine the coefficients given the value on the output, especially in a computerized setting?
Jan
23
comment Quickest way to determine a polynomial with positive integer coefficients
I don't understand. Suppose you call the function and you now know $f(\pi) = 0$. What does that tell you about the coefficients or the degree of $f$?
Jan
20
answered Where did the $-1$ come from?
Jan
20
awarded  Peer Pressure
Jan
13
comment One hundred indistinguishable ants are dropped on a hoop of diameter 1
awesome thanks veryt helpful
Jan
13
comment One hundred indistinguishable ants are dropped on a hoop of diameter 1
But why are the two problems (with bouncing and without boncing) equivalent? I agree if they don't bounce it is trivial, but why are the answers the same for both cases?
Jan
13
comment Graphing a Piecewise Function
i wonder why did someone downvote this... perfectly reasonable to ask a question with own solution posted...
Dec
30
comment Integration with absolute value
@rogerl thanks, fixed - confused sine and cosine
Dec
30
revised Integration with absolute value
added 18 characters in body
Dec
30
answered Integration with absolute value
Dec
17
answered Finding the mass of a cone using triple integral
Dec
9
comment Evaluate $\int_{-\infty}^\infty \frac{1}{(x^2+1)^3} dx$
@dustin did not see the tag
Dec
9
answered Evaluate $\int_{-\infty}^\infty \frac{1}{(x^2+1)^3} dx$
Dec
9
revised Integrals over a Surface Using Stokes Theorem
added 17 characters in body
Dec
9
revised Probability density function / maximum likelihood for correlating sequence
LaTeX
Dec
9
revised Solving a first order nonlinear PDE
added 70 characters in body
Dec
9
comment Integrals over a Surface Using Stokes Theorem
What are your thoughts on the problem? Please explain what you tried and we will be happy to provide hints