macydanim

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visits	member for	6 months
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	2,035 reputation	bio	website		visits	member for	6 months
519 badges		location			seen	May 20 at 10:56

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May 11	awarded	Caucus
Apr 29	comment	How do I solve this second order differential equation using a power series? Hello Paul, it seems that you are new to this website. It would help if you explain what you have tried so far and it would also be appreciated if you invest more time into formulating your question. You can use $y''+x^2y'+xy=0$ to use Latex, the result would be $y''+x^2y'+xy=0$ which looks nicer than the formatting you used.
Apr 25	comment	Finding $\lim_{x \to +\infty} \left(1+\frac{\cos x}{2\sqrt{x}}\right)$ The first one is correct , for the second attempt you would need to show convergence for every sequence, not just for $x_n=n^2$. Edit: If you mention the sandwich you should also give a lower bound e.g. \begin{align} 1-\frac{1}{2\sqrt{x}} \leq 1 + \frac{\cos(x)}{2\sqrt{x}} \leq 1+\frac{1}{2\sqrt{x}} \end{align}
Apr 23	revised	Definite integral including the ratio and power functions of a single variable changed latex
Apr 23	comment	Matrix Calculus in Least-Square method It really looks like the combination of our two answers cover both points ;)
Apr 22	revised	Matrix Calculus in Least-Square method deleted 1 characters in body
Apr 22	answered	Matrix Calculus in Least-Square method
Apr 22	answered	Matlab plot3 see-through element
Apr 17	comment	Matlab plot3 see-through element This might help.
Apr 17	answered	Eigenvalues for Sturm Liouville problems and more general ODE/PDE Problems
Apr 17	comment	How i could find this three-digits Do you know how to mathematically formulate the first question?
Apr 17	answered	Calculating $\lim\limits_{n\to\infty}\frac{(\ln n)^{2}}{n}$
Apr 15	comment	Complex mathematical question. Any help is much appreciated. Well, if you let $t \rightarrow \infty$ the term $(0.0000055..)^t$ reaches $0$, thus $D(t \rightarrow \infty) = 100$.
Apr 13	comment	Complex mathematical question. Any help is much appreciated. The above answer includes the part for b). Or is there something you didn't understand?
Apr 11	comment	Need little help in making matlab code related with iteration methods @srijan Comments added. I think that everybody else also could have helped, but the problem was that we first missinterpreted your question ;)
Apr 11	revised	Need little help in making matlab code related with iteration methods added 589 characters in body
Apr 11	comment	Need little help in making matlab code related with iteration methods No hurry. I will add some comments to the code soon.
Apr 11	revised	Need little help in making matlab code related with iteration methods added 340 characters in body
Apr 11	answered	Need little help in making matlab code related with iteration methods
Apr 11	comment	Need little help in making matlab code related with iteration methods So lets say for a single matrix your method converges, you get $a=10^{-8}$ and for the next matrix your method converges with $a=10^{-9}$ you would want to get $mean(a) = 5 \cdot 10^{-8}$ ?