Date: 2017-01-26 01:25 am (UTC)
From: [identity profile] olga-mw.livejournal.com
Good entertainment, so we have integral from zero to infinity of 10 sin(x) over 2 times x or 5 times integral from zero to infinity of sin(x0 over(x) which cannot be expressed in terms of elementary functions. If we are to approx as taylor then {(x- x*83/3! + x**5 /5!-x**7/7!....} /x=1-x**2/3!+x**4/5!-x**6/7!.... to estimate
I think, Laplace may work better, let me try....

Date: 2017-01-26 01:47 am (UTC)
From: [identity profile] gb0.livejournal.com
It might be somewhat useful to recall that sinc(n,x) = sin(nx))/(nx) = 1/(n*x) * (exp(i*n*x)-exp(-i*n*x))/(2i), which is a much better looking thing. Once may further recall a thing called "integral sine" Si(x), which happens to be an integral from 0 to x of 1/t*sin(t)dt and that the limit of Si(x) at x reaching +infinity is #pi/2.

Date: 2017-01-26 01:55 am (UTC)
From: [identity profile] olga-mw.livejournal.com
Yup, I am deep in numerical, so my first thought when I see non integrable is to approximate. It is all about what we used to and doing on a regular basis. But thank you anyway, i like to do that sort of things kids like it too, we buy books of problems to solve just for fun.

Though, nice departure from our annoying everyday routine.

Date: 2017-01-26 01:32 am (UTC)

Date: 2017-01-26 01:35 am (UTC)
From: [identity profile] gb0.livejournal.com
Yep, 2.5 times 3.1415926..........

Date: 2017-01-26 01:43 am (UTC)
From: [identity profile] rezkiy.livejournal.com
бургер пи пополам :-)

Date: 2017-01-26 01:50 am (UTC)
From: [identity profile] gb0.livejournal.com
полбургера #pi :) Интересно, как правильнее?
Edited Date: 2017-01-26 01:51 am (UTC)

Date: 2017-01-26 02:21 am (UTC)
From: [identity profile] gb0.livejournal.com
И еще вопрос – насколько "легитимным" являтся деления бургера на двойную кружку пива.

#pi * бургер/квартапива

Date: 2017-01-26 04:33 am (UTC)
From: [identity profile] rezkiy.livejournal.com
Я предлагаю подумать о том, как избавиться от пи. Объем пива в кружке на картинке это высота на пи на квадрат радиуса дна....

Date: 2017-01-26 09:26 pm (UTC)
From: [identity profile] gb0.livejournal.com
Тел вращения достаточно простых как-то нет.

Как-то так, разве-что.

Profile

gb0

February 2019

S M T W T F S
     12
3456789
10111213141516
171819202122 23
24 25 26 2728  

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated Feb. 6th, 2026 06:39 pm
Powered by Dreamwidth Studios