Home
Forums
New posts
Search forums
What's new
New posts
Latest activity
Log in
Register
What's new
Search
Search
Everywhere
Threads
This forum
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Free Math Help
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Differential Equations
Advanced calculus topics from Diff EQ go here.
1
2
3
…
Go to page
Go
97
Next
1 of 97
Go to page
Go
Next
Last
Filters
Show only:
Loading…
T
Locked
Sticky
Read Before Posting!
Ted
Oct 4, 2006
Replies
0
Views
18K
Oct 4, 2006
Ted
T
L
Solve dy/dx= 6e^y sin3x when y=0 and x=0
Lalala
Apr 19, 2024
Replies
11
Views
298
Saturday at 11:06 PM
mario99
M
R
Question about differential order of operations/properties
rwisnewski@shearondesign.
Apr 3, 2024
Replies
6
Views
644
Apr 11, 2024
blamocur
T
General Solution for System of Differential Equations
tommcgtx
Apr 7, 2024
Replies
2
Views
173
Apr 9, 2024
tommcgtx
T
K
Please anyone help me understand: dy/dx = (2 * dz^2 * y^(3n) - 2x^4 * ay^(-n^3) - az * (m^2 - y^3)) / (y^3 * dz)
kaif78
Mar 25, 2024
Replies
0
Views
245
Mar 25, 2024
kaif78
K
D
Please help me understand and solve the second-order DM: yy" + y = (y')^2
Dana04
Mar 18, 2024
Replies
1
Views
331
Mar 18, 2024
mario99
M
J
Burgers equation: du/dt + u * du/dx - v* (d^2u/dx^2) = 0, with u(x,0)= 2 for x < 0 u(x,0)= 0 for x >/= 0
junelikespi
Feb 15, 2024
Replies
1
Views
397
Mar 4, 2024
mario99
M
M
[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?
MathNugget
Feb 17, 2024
2
Replies
21
Views
1K
Feb 24, 2024
mario99
M
I
Green theorem: compare {xy-(x^2)} dx+)x^2)ydy} over the triangle bounded lines y=0,x=1,y=x and verify by Green's theorem
iron123
Feb 23, 2024
Replies
0
Views
149
Feb 23, 2024
iron123
I
M
derivating v(x, t) := u(x-4t, t) on x and t (partial derivatives)
MathNugget
Feb 1, 2024
Replies
13
Views
577
Feb 16, 2024
MathNugget
M
C
A very small detail in the linear 2rd order diff equation regarding integral of tanx
Chang
Feb 12, 2024
Replies
1
Views
167
Feb 15, 2024
Dr.Peterson
M
Help solve (y log x)dx + (x - log y) dy = 0: I have used integrating factor log(y/x)
MarcusG
Jan 7, 2024
Replies
8
Views
676
Jan 15, 2024
blamocur
M
Laplace in Three Dimensions: [math]\frac{\partial^2 u}{\partial x^2} +\frac{\partial^2 u}{\partial y^2} + \frac{\partial^2 u}{\partial z^2} = 0[/math]
mario99
Jan 1, 2024
Replies
2
Views
890
Jan 5, 2024
mario99
M
M
Solve this Differential Equation: u"(x) = (lambda * (e^{-x} / x - k^2) u(x) = 0
mario99
Oct 28, 2023
Replies
5
Views
560
Dec 29, 2023
mario99
M
M
Solve this Differential Equation: (1+x^2)u"(x) + 2xu'(x) - 2u(x) = 0, u(x) = (c_1)x + (c_2)(1 + x*tan^{-1}(x))
mario99
Oct 28, 2023
Replies
15
Views
980
Dec 12, 2023
mario99
M
M
Find Green's function G(x,t;x',t') for the operator L = partial/partial-t - k*(partial^2 / partial-x^2) in the region...
mario99
Dec 11, 2023
Replies
0
Views
241
Dec 11, 2023
mario99
M
C
How do I go about solving this problem? Let f(t) = |t| for -1<t<1; find periodic soln to x"+(pi)^2 x = f(t)
corolla
Nov 26, 2023
Replies
7
Views
645
Nov 28, 2023
blamocur
C
Why is my Laplace Inverse wrong?
corolla
Nov 18, 2023
Replies
2
Views
294
Nov 20, 2023
BobP
B
M
Laplace PDE that will Blow your Mind: partial^2-u/partial-x^2 + partial^2-u/partial-y^2 = 0,...
mario99
Nov 12, 2023
Replies
3
Views
439
Nov 15, 2023
mario99
M
A
How to draw phase portrait for systems? (a) dx/dt=0, dy/dt=0; (b) dx/dt=x, dy/dt=0; (c) ...
aash
Nov 11, 2023
Replies
1
Views
262
Nov 12, 2023
stapel
A
Exponential growth: ""Grain is pouring from a hopper on to a barn floor where it forms a conical pile..."
Aminta_1900
Nov 8, 2023
Replies
8
Views
523
Nov 11, 2023
khansaheb
K
1
2
3
…
Go to page
Go
97
Next
1 of 97
Go to page
Go
Next
Last
You must log in or register to post here.
Forums
Free Math Help
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top