1. Announcement:
stapel (Elite Member)
01-14-2016
Views:
15,733
Page 1 of 63 1231151 ... Last
Threads 1 to 20 of 1259

# Forum: Differential Equations

Advanced calculus topics from Diff EQ go here.

1. ### Sticky: Read Before Posting!

• Replies: 0
• Views: 14,764
Ted
10-04-2006, 10:13 PM
1. ### From weak to strong formulation

• Replies: 0
• Views: 71
06-18-2018, 10:21 AM
2. ### Solving (simple?) differential eqn: (a - x)^2 - y t'(a) (1 - e^{-yt(a)}) = 0

• Replies: 3
• Views: 439
06-03-2018, 11:56 PM
3. ### 1st- & 2nd-order differential eqns: ds/dt= u-gt, 60 d^2x/dt^2 + 500dx/dt + 900x = 0

• Replies: 2
• Views: 670
05-21-2018, 12:29 PM
4. ### Find soln of PDE for given boundary conditions: (1/r)*∂/∂r(r*∂Φ/∂r) + ∂^2(Φ)/∂z^2...

• Replies: 1
• Views: 392
05-18-2018, 04:00 PM
5. ### Autonomous ODE, determine initial value given limit[x->infty] y(x) = 15/2

• Replies: 1
• Views: 353
05-10-2018, 04:12 PM
6. ### Nondimensionalising and solving nonhomogeneous heat equation

• Replies: 2
• Views: 284
05-07-2018, 11:02 AM
7. ### Trouble finding particular soln to this diff eqn: y''(x) + (nπa/l)2 y(x) = Asin(x/l)

• Replies: 4
• Views: 987
05-03-2018, 08:49 AM
8. ### Difficulty in solving differentiate eqn: rabbit reproduction versus disease

• Replies: 3
• Views: 384
04-30-2018, 12:03 PM
9. ### What is 1st order homogenous differential equation? (x^2+y^2)dx-2xy dy=0

• Replies: 2
• Views: 358
04-30-2018, 08:22 AM
10. ### Question about a Pertubation Problem: y''+vy^(1/2)+8=x

• Replies: 1
• Views: 302
04-19-2018, 08:40 PM
11. ### Solve the PDE: $u_t + xu_x = -tu, x \in R, t > 0; \: u(x,0) = f(x), x \in R$

• Replies: 0
• Views: 228
04-15-2018, 01:30 AM
12. ### Reduce y'' + y''' Sin(y) = 0 to first order and solve

• Replies: 4
• Views: 1,760
04-13-2018, 09:59 AM
13. ### Laplace transform: steps between f(t)= cos(t-5+5)H(t-5) and f(t)= cos(t-5)cos5 H(t-5)

• Replies: 2
• Views: 288
04-11-2018, 05:31 AM
14. ### Diff-EQ: At time t=0, James was given unknown amount of unknown radioactive substance

• Replies: 2
• Views: 538
04-02-2018, 10:02 AM
15. ### ODE y''+y=4*x*sin x. Guessing particular solution?

• Replies: 5
• Views: 514
03-30-2018, 01:29 PM

#### Forum Information and Options

##### Moderators of this Forum

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Note: when sorting by date, 'descending order' will show the newest results first.