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Forum: Differential Equations

Ordinary and Partial Differential Equations, Linear and Nonlinear; also Integral and Integro-Differential Equations

  1. Sticky Thread Sticky Threads

  2. Sticky Thread Bessel Functions Cheat Sheet

    Started by Ackbach, September 11th, 2015 10:13
    • Replies: 0
    • Views: 1,416
    September 11th, 2015, 10:13 Go to last post
  3. Sticky Thread Stürm-Liouville Problem Cheat Sheet

    Started by Ackbach, September 4th, 2015 10:10
    • Replies: 0
    • Views: 1,266
    September 4th, 2015, 10:10 Go to last post
  4. Sticky Thread Status of DE Tutorial

    Started by Chris L T521, December 26th, 2012 03:16
    • Replies: 4
    • Views: 2,457
    July 10th, 2013, 04:41 Go to last post
  1. Normal Thread Normal Threads

  2. [SOLVED] 17.2.05 Solve the given equation by the method of undetermined coefficients.

    Started by karush, June 7th, 2017 21:17
    2 Pages
    1 2
    campus, equation, method, solve, undetermined
    • Replies: 16
    • Views: 868
    June 10th, 2017, 19:07 Go to last post
  3. Find sets

    Started by evinda, May 26th, 2017 10:47
    $gx=-g-x$, find, geq, mathbbr, sets
    • Replies: 2
    • Views: 463
    May 29th, 2017, 14:07 Go to last post
  4. [SOLVED] 242.17.8 Solve the given equation by variation of parameters.

    Started by karush, May 20th, 2017 17:45
    $textitnow, 242.17.8, equation, equation$, variation
    • Replies: 4
    • Views: 550
    May 23rd, 2017, 19:05 Go to last post
  5. Is the solution unique?

    Started by evinda, May 9th, 2017 19:18
    form, sinfracn, solution, tt$, xl$
    • Replies: 2
    • Views: 389
    May 11th, 2017, 15:39 Go to last post
  6. [SOLVED] The auxiliary would equation be

    Started by karush, May 6th, 2017 01:47
    2 Pages
    1 2
    %0&implies, auxiliary, equation, r^2+9&=0, y+9y&=5cos5x
    • Replies: 15
    • Views: 1,025
    May 9th, 2017, 16:35 Go to last post
  7. Determine the space

    Started by evinda, May 6th, 2017 18:13
    $mathbbr^2$, determine, solution, space, text
    • Replies: 9
    • Views: 581
    May 7th, 2017, 07:50 Go to last post
  8. How to use Fourier Series

    Started by evinda, April 30th, 2017 12:44
    3 Pages
    1 2 3
    cosfracm, fourier, initial, problem, series
    • Replies: 28
    • Views: 1,645
    May 3rd, 2017, 11:01 Go to last post
  9. Odd and even extension

    Started by evinda, May 1st, 2017 08:23
    • Replies: 4
    • Views: 487
    May 1st, 2017, 16:32 Go to last post
  10. [SOLVED] 17.2.10 y_p is a particular solution

    Started by karush, April 21st, 2017 17:01
    $y0=0$, $y=$, equation, frac34x$, solution
    • Replies: 7
    • Views: 524
    April 22nd, 2017, 16:22 Go to last post
  11. Limit of the solution - Which is the conclusion?

    Started by mathmari, April 2nd, 2017 11:52
    $y$, conclude, m_2$, rightarrow, solution
    • Replies: 5
    • Views: 576
    April 2nd, 2017, 15:04 Go to last post
  12. Linear differential equation

    Started by mahmoud shaaban, March 19th, 2017 14:12
    • Replies: 1
    • Views: 466
    March 19th, 2017, 16:41 Go to last post
  13. Asymptotic

    Started by meenums34, February 27th, 2017 05:05
    dominance, find, method, proceed, realised
    • Replies: 1
    • Views: 559
    March 4th, 2017, 09:36 Go to last post
  14. [SOLVED] A tank contains 200 gal of fresh water

    Started by karush, February 23rd, 2017 13:19
    fertilizer, gal, gal/min, maximum, tank
    • Replies: 7
    • Views: 1,109
    February 23rd, 2017, 23:23 Go to last post
  15. Self-similarity of nonlinear PDE

    Started by Raisa, February 18th, 2017 18:57
    • Replies: 0
    • Views: 364
    February 18th, 2017, 18:57 Go to last post
  16. [SOLVED] 242.7x.13 Solve the differential equation

    Started by karush, February 2nd, 2017 14:54
    2 Pages
    1 2
    $textitjust, 242.7x.13, differential, direction, e^y
    • Replies: 11
    • Views: 1,132
    February 2nd, 2017, 20:19 Go to last post
  17. Show that the function is the solution

    Started by evinda, January 15th, 2017 18:41
    • Replies: 5
    • Views: 767
    January 20th, 2017, 20:05 Go to last post
  18. Uniqueness of solution

    Started by evinda, October 9th, 2016 11:37
    2 Pages
    1 2
    delta, int_partialb_r, leq, phix_0right|=left|, xi|phixi-phix_0|
    • Replies: 17
    • Views: 2,015
    January 19th, 2017, 17:03 Go to last post
  19. Questions about proof of theorem

    Started by evinda, January 11th, 2017 15:51
    $omega$, $overlineomega, phi$, setminus, x_0
    • Replies: 1
    • Views: 440
    January 15th, 2017, 07:57 Go to last post
  20. How do we get the relations?

    Started by evinda, December 14th, 2016 16:12
    $gx$, dphi=frac12, int_0^2, nabla_xih, sinphi
    • Replies: 8
    • Views: 1,103
    December 20th, 2016, 10:45 Go to last post
  21. 2 Differential Equations by Substitution

    Started by abhay, December 14th, 2016 02:51
    • Replies: 5
    • Views: 832
    December 16th, 2016, 00:33 Go to last post
  22. [SOLVED] method of integrating factor

    Started by karush, December 10th, 2016 02:48
    displaystyle, equation$, factor, integrating, method
    • Replies: 2
    • Views: 420
    December 10th, 2016, 03:24 Go to last post
  23. Application of chain rule

    Started by evinda, December 2nd, 2016 05:26
    2 Pages
    1 2
    +infty, derivative, mathbbr^n$, rule, times
    • Replies: 12
    • Views: 1,292
    December 4th, 2016, 08:28 Go to last post
  24. Show that the function is a solution of the equation

    Started by evinda, December 2nd, 2016 19:55
    cdots, dots+, i=1, v_2, x_i
    • Replies: 8
    • Views: 790
    December 3rd, 2016, 18:56 Go to last post
  25. Differential equation

    Started by wheepep, November 26th, 2016 13:44
    constant, differential equations, equation, find, respect
    • Replies: 2
    • Views: 499
    November 26th, 2016, 16:48 Go to last post
  26. The functions is equal to zero for x=0

    Started by evinda, November 25th, 2016 05:32
    gammat, mathbbr, problem, text, x=phix
    • Replies: 2
    • Views: 443
    November 25th, 2016, 18:26 Go to last post
  27. How do we apply the proposition?

    Started by evinda, November 16th, 2016 05:44
    $omega$, ball, omega, subharmonic, text
    • Replies: 4
    • Views: 682
    November 23rd, 2016, 19:06 Go to last post

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Top 153 Thread Starters For "Differential Equations"

RankUser NamePercentage Of TotalThreadsMost Recent Thread
1dwsmith12.490What is meant by find the time...
2evinda8.864Find sets
3mathmari8.461Limit of the solution - Which ...
4find_the_fun5.842finding interval where second ...
5shamieh3.727Use series methods to solve [2...
6Markov3.425First order PDE
7karush3.223Eigenvectors and Eigenvalues (...
8ineedhelpnow2.921Critical Points, Stability
9onie mti2.619solving a cauchy problem
9ognik2.619Another Frobenius method ODE
10alane19942.317Population Dynamics... again
10kalish2.317Solving a system of an arbitra...
11nacho1.914Chebyshev Expansion (I need he...
12grandy1.813Boundary integral method to so...
13simo1.712looking at a solitary initial ...
14bergausstein1.511Elimination of constants
15Poirot1.29Fourier transform
16Julio1.18Laplace equation and Median Va...
17Cbarker11.07Example of systems of the diff...
18Alexmahone0.86Infinitely many solutions
19shorty0.75Damped Free Forced Vibration
19Cadbury0.75Solution of the equation
19brunette150.75Parametric representation of a...
20Fantini0.64Stable and unstable manifolds ...
20oasi0.64solving ODE with series
20ssh0.64Hypergeometric equation
20Alan0.64Wronskian of Airy functions.
20suvadip0.64differential eq of first order...
20LLand3140.64Need help setting up Different...
20nathancurtis110.64Finding a value for a y(0) = ...
20stripedcat0.64Bernoulli to Linear First Orde...
21Chris L T5210.43Status of DE Tutorial
21Carla19850.43Peak in single ODE within a sy...
21rsoy0.43Show whether the given ODE is ...
21ZiniaDuttaGupta0.43Stability, phase portrait, bif...
21Vishak0.43Second order inhomogeneous dif...
21Guest0.43System of differential equatio...
21frank12340.43Help on a 2nd Order Linear Dif...
21dansingh0.43reduction of linear or non lin...
21arrow270.43Fourier Transform
21DrWahoo0.43General DE questions and help
21MermaidWonders0.43More Differential Equations...
22Ackbach0.32Bessel Functions Cheat Sheet
22bkarpuz0.32Solution of the PDE?
22ifeg0.32what is the difference between...
22MacLaddy0.32Inflection Point of the Thresh...
22Sudharaka0.32Solving a Riccati Differential...
22Jason0.32ODE system. Limit cycle; Hopf ...
22madflame9910.32System of DEs
22Chipset36000.32ODE PVI problem.
22Amer0.32How to solve this Differential...
22Hurry0.32D'Lambert problem
22crevoise0.32Bernoulli / Riccati Equation
22topsquark0.32Simple pendulum, ref: POTW 156
22skatenerd0.32derivative of bessel function ...
22hatguy0.32Solving Nonlinear ODEs I
22wmccunes0.32Integrating factor, initial va...
22paulmdrdo0.32Differential Equation of Unkno...
22Kris0.32Help rearranging a linear firs...
22LATEBLOOMER0.32Differential equation populati...
22shen070.32PDE Solving Continuity Equatio...
22dearcomp0.32D.E with Physics Included
22Pranav0.32Solving a first-order differen...
22LAK0.32Separation of Variables
22cheatmenot0.32Obtaining Differential Equatio...
22rayne0.32general solution to 2nd order....
22Nikolas70.32Differential equation y/(x^2+y...
22Joppy0.32Discrete dynamical systems - I...
22jmorgan0.32Superposition
22markosheehan0.32differentiation equation: equa...
22jahrens0.32Help with another separable eq...
22kayella190.32Any one who can solve this?
22ToastIQ0.32General solution y''+2y'+y=x(e...
23Ulysses0.11Partial differential equation
23Kane0.11need help with transforming on...
23issacnewton0.11vanishing wronskian for linear...
23battleman130.11A few small questions about di...
23GreenGoblin0.11Cannot isolate y (first order ...
23MarkFL0.11Using the annihilator method t...
23nonsequitter0.11Dirichlet Problem for Laplace'...
23I like Serena0.11Interesting ODE
23charlottewill0.11Volterra-Lotka system.
23caffeinemachine0.11Book Recommendation for Ordina...
23blackthunder0.11first order pde
23themurgesh0.11Integrating Factor Question
23weber0.11Series Solution of a DE
23Usagi0.11Frobenius Method Queries
23rishadjb0.11Linear ODE for a fundamental s...
23azuralshadow0.11Understanding partial solution...
23thecoop0.11Finding Critical Points of a D...
23superbread880.11Question on 1D heat equation
23U4770.11Air resistance equation
23Petrus0.11First order linear differentia...
23heaviside0.11Assistance needed for this ODE...
23ryo00710.11Nonlinear PDE
23Jerome0.11Hankel and mellin transform
23ipaper0.11A property of solution of ODE ...
23krish0.11Solving an IVP for a system of...
23ends0.11Mixing Problem?
23nuggz6190.11First Order Differential Equat...
23Bibbster0.11Second order differential help...
23shocks900.11Integrating with trigo....ODE
23emily6000.11Partial DE-separation of varia...
23ISITIEIW0.11Verify a function is a solutio...
23goku9000.11Phase Line and long term behav...
23talha0.11non-linear first order differe...
23ChemEng0.112nd order ODE (Control Systems...
23tylerbizoff0.11Heat equation with annoying so...
23zkee0.11Homogeneous Functions
23mikky05v0.11Torrcelli's law of fluids
23CWolf0.11Singular Points
23Schmidt0.11Displacement of mass spring sy...
23Aryth0.11Finding Integral Curves
23mathgirl0.11Find all solutions (integral s...
23Pascal0.11Coupled ODEs
23jakejakejake0.11Laplace Transform, Finding sol...
23Naincy0.11First order linear ODE
23danthatdude0.11Second Order Linear ODE
23Milly0.11Integration of separate variab...
23PullandTwist0.11HELP: Orthogonal Trajectories
23PeterH0.11Modelling the motion of a mete...
23Rezalt0.11Help with motions of a double ...
23marrvo0.11Find equation system for bound...
23KD17290.11Identifying the Degree of a Di...
23xichyu10.11How can the six unknown number...
23superduck13850.11Partially Decoupled System
23Ciaran0.11Changing variables DE
23kJS0.11Inverse Laplace Transform 2
23notagenuis0.11Newton's Cooling Law
23ozkan120.11What does priori estimate do i...
23tiaborrego0.11Integrating Factor
23hornekat0.11Please help me solve this diff...
23NotaMathPerson0.11Exact ODE?
23Krish230.11Put the 2D nonlinear system in...
23Derby0.11Damped spring differental equa...
23WelshDave0.11Turning 2nd order into 1st ord...
23Sophie0.11Laplace transform help
23metstandard160.11Non-linear 2nd Order ODE
23flanker0.11Help to find asymptotic soluti...
23mahmoud shaaban0.11Linear differential equation
23rozin0.11Differential equation
23Umar0.11Find a product solution to the...
23Harambe0.11Differential equations stabili...
23wheepep0.11Differential equation
23abhay0.112 Differential Equations by Su...
23Raisa0.11Self-similarity of nonlinear P...
23meenums340.11Asymptotic
23Roger0.11Bounded Solution For Different...
23ertagon20.11Inverse and differentation of ...
23Emjay0.11Differential equation w/ cos a...
23sumanraj0.11modeling the flow from a gate ...
23havtorn0.11Changing height in tank depend...
23ChrisHuey0.11Local Error: Euler/Crank-Nicho...
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