# Differential Equations Forum

Differential Equations Help Forum

1. ### DE Tutorial - Part I: First Order Equations and Homogeneous Second Order Equations

• Replies: 5
• Views: 24,521
Mar 15th 2010, 12:44 PM
2. ### DE Tutorial - Part II: Nonhomogenous Second Order Equations and Their Applications

• Replies: 4
• Views: 9,171
Dec 27th 2008, 08:56 AM
3. ### DE Tutorial - Part III: Systems of Differential Equations

• Replies: 2
• Views: 6,296
Aug 29th 2009, 09:03 PM
4. ### DE Tutorial - Part IV: Laplace Transforms

• Replies: 1
• Views: 9,396
Feb 8th 2011, 11:56 PM
1. ### [SOLVED] Solve the following differential equation?

• Replies: 3
• Views: 637
May 3rd 2009, 09:17 PM
2. ### [SOLVED] Speed of increase

• Replies: 3
• Views: 593
Mar 1st 2010, 01:23 PM
3. ### [SOLVED] Substitution help...

• Replies: 3
• Views: 644
Feb 6th 2010, 08:17 PM
4. ### [SOLVED] transversality condition

• Replies: 1
• Views: 775
Jan 13th 2010, 08:59 AM
5. ### [SOLVED] Tricky First Order ODE

• Replies: 1
• Views: 569
Apr 4th 2010, 07:11 PM
6. ### [SOLVED] Uniqueness of the solution

• Replies: 9
• Views: 1,055
Jun 16th 2009, 01:38 PM
7. ### [SOLVED] variation of parameters

• Replies: 4
• Views: 905
Mar 17th 2010, 11:47 AM
8. ### [SOLVED] Verify solution for 2nd order eqn. by taking real part....

• Replies: 2
• Views: 906
Apr 5th 2010, 08:34 AM
9. ### [STUCK]Series Solution to Differential Equations

• Replies: 2
• Views: 876
Jan 20th 2010, 05:33 AM
10. ### \theta''+\lambda\theta=0

• Replies: 4
• Views: 540
Apr 9th 2011, 05:23 PM
11. ### [SOLVED] \varphi'''-\lambda\varphi=0

• Replies: 4
• Views: 810
Feb 18th 2011, 09:11 PM
12. ### [SOLVED] \varphi^{(4)}-\lambda\varphi=0

• Replies: 10
• Views: 677
Mar 16th 2011, 03:29 PM
13. ### {(dx/dt)=1-xy, (dy/dt)=x-y^3} Systems of Diff Eqns

• Replies: 4
• Views: 1,449
Dec 6th 2013, 04:45 PM
14. ### {x^2y''-20y=0, y(1)=1, y'(1)=gamma}

• Replies: 3
• Views: 2,023
Oct 22nd 2013, 03:28 PM
15. ### żunsolved problems in differential equations?

• Replies: 2
• Views: 952
Nov 21st 2009, 05:12 AM

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### non negative integral solution for inequality

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