LorenMt
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 May 6 comment What are the limitations /shortcomings of Fourier Transform and Fourier Series? Fourier transform is only restricted to imaginary axis. Thus, sometimes in these cases, we need to use Laplace transform. Sep 24 awarded Autobiographer Feb 21 answered Help proving basic group properties Feb 5 comment Examples of Talagrand's inequality math.ucla.edu/~nickcook/talagrand.pdf This link may help. Feb 3 comment How many triangle can be drawn with those points? As the different distribution of the points may result some very different answers. You need to add the condition here. Dec 13 revised Find the value of c improved formatting Dec 13 suggested approved edit on Find the value of c Dec 12 awarded Organizer Dec 12 revised When is $|f(x)|$ equivalent to $f(|x|)$ Improved formatting. Dec 12 suggested approved edit on When is $|f(x)|$ equivalent to $f(|x|)$ Dec 12 awarded Supporter Dec 12 comment Random sampling of 100 data points from a binomial population I have changed the data. Dec 12 awarded Editor Dec 12 revised Random sampling of 100 data points from a binomial population added 3 characters in body Dec 12 comment Random sampling of 100 data points from a binomial population You said 40 is the mean..so let me redo again. 40 should be the number of trial. Dec 12 answered Random sampling of 100 data points from a binomial population Dec 12 comment Uniform convergence of $\sum\limits_{n=1}^\infty \frac{(-1)^n}{ne^{nx}}$ Maybe you can try to use the ratio test. Similar question: link Dec 11 comment Polynomial With Imaginary Roots You are in the right track. The complex roots always come as conjugated. Thus the equation will actually have 4 roots. Then you can rewrite into $(x-a)(x-b)(x-c)(x-d)=0$ form, and you will have your answer. Dec 10 answered Proving that $\sum_{k=0}^{\infty}\frac{1}{(k+1)(2k+1)(4k+1)}=\frac{\pi}{3}$ Dec 10 awarded Teacher