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M
MathNugget
reacted to
MaxWong's post
in the thread
[math]v_t(x, t)-v_{xx} (x, t)=0 , x\in \mathbb{R}, t>0, v (x, 0) = sin^2(3x), x\in \mathbb{R}[/math] can this be solved using separation of variables?
with
Like
.
I'm not a genius. I just learnt this fact from our university's PDE course and then memorized it. :ROFLMAO: You probably know more about...
Today at 4:18 PM
M
MathNugget
reacted to
mario99's post
in the thread
[math]v_t(x, t)-v_{xx} (x, t)=0 , x\in \mathbb{R}, t>0, v (x, 0) = sin^2(3x), x\in \mathbb{R}[/math] can this be solved using separation of variables?
with
Like
.
You are a Genius. In my solution, I had to use the Fourier transform to convert the PDE to an ordinary differential equation and solve...
Today at 4:18 PM
S
shreddinglicks
replied to the thread
Using Fourier Bessel series to solve the annular cylinder heat problem
.
Yes, but what of the situation where, a <r <b? In this case Bessel Y does not get removed. I have two coefficients in this case...
Today at 3:02 PM
blamocur
replied to the thread
Polygon with 180 degrees?
.
Python, NumPy and MatPlotLib.
Today at 2:51 PM
blamocur
replied to the thread
how to solve this?
.
That would be my answer, yes.
Today at 2:50 PM
M
mario99
replied to the thread
Using Fourier Bessel series to solve the annular cylinder heat problem
.
If you have a Fourier Bessel series expansion like this: \displaystyle f(x) = \sum_{k=1}^{\infty}a_kJ_m(z_{mk}x) And you want to find...
Today at 1:56 PM
A
Aion
replied to the thread
Logic puzzle question.
.
In retrospect, there might be other formalizations that would yield different conclusions on this problem. Although I thought mine was...
Today at 12:11 PM
S
shreddinglicks
posted the thread
Using Fourier Bessel series to solve the annular cylinder heat problem
in
Differential Equations
.
Hello, I see many examples for solutions of the heat problem in cylindrical coordinates. I notice one thing in common. They all apply...
Today at 12:11 PM
A
apple2357
replied to the thread
Polygon with 180 degrees?
.
What software and how did you produce this? Just interested.
Today at 11:47 AM
D
Duplicity
replied to the thread
Unsolvable? problem. (with corrected the typo)
.
Below is just to demonstrate how the lower bound is found.
Today at 10:57 AM
L
lookagain
replied to the thread
How much does he gain by this transaction?
.
In your attempt, you are missing units in two places: N200 \times \frac{9}{100} \times \frac{2}{12} = N3 N200 \times \frac{5}{100} = N10
Today at 9:52 AM
A
Aion
posted the thread
Logic puzzle question.
in
Beginning Algebra
.
3. After excavating for weeks, you finally arrive at the burial chamber. The room is empty except for two large quests. On each is...
Today at 9:36 AM
L
logistic_guy
replied to the thread
how to solve this?
.
do you mean the answer is y(x) = c_1x + c_2?
Today at 9:09 AM
blamocur
replied to the thread
how to solve this?
.
It's not wrong, just not very useful. It is missing additive constant.
Today at 8:11 AM
topsquark
reacted to
The Highlander's post
in the thread
assume nonconstant acceleration
with
Like
.
I provided a detailed explanation of this at Post #7 and, I'm happy to say 😊, s/he now seems to understand. 😉
Today at 8:10 AM
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