Function f(t) specified on [t_0;t_1] has a necessary number of derivatives. Find algorithm which can build uniform approximations of this function with help of partial sums:
\sum_{i=1}^{N}\alpha_i e^{-\beta_i t}.
That is, find such \alpha_i, Re(\beta_i)\geq 0 satisfying the expression...
We must find the resistance between opposite vertices, not adjacent. The second problem is too easy rather than the first :)
Here is the picture of the problem discussed:
http://rghost.ru/3908/download/22312f648e26dabce002e347898f5242c521aa58/Hexagons.pdf" [Broken]
This is a misunderstanding. :) I have already solved this problem. I was only trying to represent it to the people, who are interested in it. But I suppose I wrote this problem in the wrong forum section... Dick, please, if you have the answer, write me a private message. We'll check the result ;)
We have an infinite net of regular hexagons. Each side of hexagons has a resistance R. What is the resistance between two opposite vertexes of hexagon(s)?
Sorry for my English. :)
Let function f(x) defined on [a,b] and its table f(x_k) determined in equidistant interpolation nodes x_k k=0,1,..,n with step h=\frac{b-a}{n}.
Inaccuracy of piecewise-polynomial interpolation of power s (with the help of interpolation polynoms P_s(x,f_{kj}) on the x_k...
But actually, I didn't use differential equation :)
\frac{1}{a_{n+1}}=\frac{1+\left|sin(a_n)\right|}{a_n}
It's easy to show that a_n is going to zero at large n, but remains postive. So:
\frac{1}{a_{n+1}}=\frac{1+a_n-\frac{1}{6}a_n^3+o(a_n^3)}{a_n} =\frac{1}{a_n}+1+b_n, where b_n \rightarrow...
Thank you, arivero.
The second book of the Landau series laying on my table (in Russian of course) :) But the only thing I found in this book is collision of two particles, when after boom we have the same two particles (and also I found decay of the particle when we have two particles in the...
arivero, thank you for almost complete answer. You showed my mistake very clearly. But it still bother me, how can I prove, that your solution is right, when we say nothing about momentum of the neutrinos and/or the electron along y or z? When we simplify our equations, don't we make a mistake?
I'm sorry, what do you mean backward or forward???
Please, read my calculations.
Emax is when impulses of neutrino and antineutrino have opposite directions and equals in absolute! Isn't it?
[SOLVED] myuon decay
First, sorry for my English. I'm not very well in it... Please, try to understand.
I wrote this problem in "Introductory Physics", but some man sayed its not "introductory", so I decided to post it in "Advenced Physcis".
The problem.
We have reaction: \mu \rightarrow e...
First, sorry for my English. I'm not very well in it... Please, try to understand :)
The problem.
We have reaction: \mu \rightarrow e + \nu + \tilde{\nu}
We know energy of myuon - E.
Question: Find the maximum and the minimum energy of electron.
My attept:
Conservation of energy: E =...