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location Kathmandu, Nepal
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visits member for 3 years, 6 months
seen 5 hours ago

experimentX

I am embarrassed, probably I should just die!!


5h
comment No real solutions to $\sum_{n\,=\,0}^\infty \frac {(-1)^{n + 1}} {n^x} = 0$
for $x\le0$ the sum diverges, for $x>0$, hmm ... use sqeeze theorem.
5h
comment How do I do Mobius Transformation
just use those equations to solve for a, b, c, d.
7h
comment Definite integral problem
@Cheeku Here there are tons of methods listed to compute that identity.
7h
revised Definite integral problem
added 494 characters in body
15h
comment Is this a valid method of finding magnitude of complex fraction
A complex number can be represented as $re^{i\theta}$ where $r$ is magnitude, try using it on both ... numerator and denominator.
15h
revised Definite integral problem
added 111 characters in body
16h
answered Definite integral problem
1d
comment Turning a summation into an integral
hi ... try LaTeX
1d
awarded  calculus
1d
revised Spectrum of a Rectangular signal?
edited tags
1d
comment What is 2 choose2?
There you go
1d
comment What is 2 choose2?
no ... just leave it as it is. I think there is a nice video on youtube explaining it.
1d
comment What is 2 choose2?
$0!=1{{{{{}}}}}$
1d
revised What is 2 choose2?
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1d
comment Infinite double potential well
use the continuity of the functions and their derivative at boundary of each region .... i.e. $\psi_1(a) = \psi_2(a)$ and $\psi_1'(a) = \psi_2'(a)$ and get rid of the constant like A, B, ... as much as possible. normalize it later ... by setting the integral from $-(a+b) \to (a+b)$. Ugh ... looks like awful lot of work to me.
1d
comment Infinite double potential well
does method of pertubation work??
1d
revised $y''+2y'+5y=0$, initial value problem with Laplace transform?
edited title
1d
revised Explain how the following is equal to $2\cos x$.
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1d
comment Calculating a double integral
@LukaHorvat sorry, I had made error on inputing on wolf. From the looks of output, I don't think there is any symmetry involved. And there is no escape from $\int x^2 \sin(x) dx $. lol ... I myself don't feel like evaluating that integral :(
1d
revised Calculating a double integral
added 26 characters in body