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# Differential Equations Forum

Differential Equations Help Forum

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

• Replies: 5
• Views: 24,396
Mar 15th 2010, 12:44 PM
2. ### DE Tutorial - Part IV: Laplace Transforms

• Replies: 1
• Views: 9,273
Feb 8th 2011, 11:56 PM
3. ### DE Tutorial - Part II: Nonhomogenous Second Order Equations and Their Applications

• Replies: 4
• Views: 9,028
Dec 27th 2008, 08:56 AM
4. ### DE Tutorial - Part III: Systems of Differential Equations

• Replies: 2
• Views: 6,163
Aug 29th 2009, 09:03 PM
1. ### Mixture problem "A tank contains..."

• Replies: 7
• Views: 3,829
Mar 26th 2011, 11:09 PM
2. ### Euler's Method

• Replies: 2
• Views: 3,815
Nov 9th 2009, 07:20 AM
3. ### Particular Integral

• Replies: 4
• Views: 3,805
Feb 27th 2011, 12:52 AM
4. ### Finding the separatrix

• Replies: 1
• Views: 3,801
Mar 29th 2012, 04:39 PM
5. ### Euler's Method in Excel

• Replies: 16
• Views: 3,797
Nov 21st 2010, 07:14 PM
6. ### Differential Equation Problem Jet Take Off

• Replies: 3
• Views: 3,788
Dec 2nd 2008, 09:20 AM
7. ### y'' + y' = xcosx

• Replies: 3
• Views: 3,786
Mar 2nd 2016, 05:04 PM
8. ### Solving dy/dx = (1+3x^2)/(3y^2-6y)

• Replies: 2
• Views: 3,779
Jun 29th 2010, 08:20 PM
9. ### decay rate of drug

• Replies: 1
• Views: 3,771
Jul 12th 2009, 06:22 PM
10. ### Number of boundary conditions to solve a 2D PDE ?

• Replies: 2
• Views: 3,745
Nov 22nd 2012, 10:50 AM
11. ### Extended Linearity Principle

• Replies: 1
• Views: 3,738
Apr 5th 2011, 07:51 AM
12. ### Logistic Model with Harvesting

• Replies: 1
• Views: 3,735
Apr 26th 2010, 12:12 PM
13. ### HELP! D.E.of a family of circles tangent to the x-axis :))

• Replies: 3
• Views: 3,724
Jul 21st 2013, 03:17 AM
14. ### [SOLVED] separable ode

• Replies: 3
• Views: 3,690
Feb 14th 2009, 02:57 PM
15. ### General Solution of Laplace Equation Uxx + Uyy = 0

• Replies: 4
• Views: 3,662
Sep 16th 2014, 11:35 AM
16. ### solution interval for IVP

• Replies: 2
• Views: 3,657
Sep 26th 2009, 02:55 PM
17. ### chemical reaction....

• Replies: 4
• Views: 3,619
Apr 4th 2011, 07:06 PM
18. ### initial value problem and critical value of a0.

• Replies: 8
• Views: 3,591
Apr 6th 2011, 02:14 AM
19. ### find an interval centered about x = 0

• Replies: 1
• Views: 3,541
Feb 25th 2011, 08:52 PM
20. ### Another DE problem

• Replies: 1
• Views: 3,537
Sep 27th 2010, 06:40 AM
21. ### Separation of Variables

• Replies: 7
• Views: 3,515
Jan 3rd 2010, 05:25 PM
22. ### general solution of differential equations

• Replies: 10
• Views: 3,507
Apr 6th 2011, 02:17 AM
23. ### Temperature Problem

• Replies: 6
• Views: 3,505
Jan 30th 2011, 03:07 PM
24. ### solving D.E by undetermined coefficients.

• Replies: 1
• Views: 3,474
Mar 29th 2011, 07:59 PM
25. ### How to solve this differential equation?

• Replies: 3
• Views: 3,473
Oct 5th 2018, 05:04 AM

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### non negative integral solution for inequality

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