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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: 1,295
    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: 1,143
    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: 2,302
    July 10th, 2013, 04:41 Go to last post
  1. Normal Thread Normal Threads

  2. Differential equation

    Started by rozin, September 3rd, 2016 16:09
    differential, equation, family, normals, y=x^2
    • Replies: 1
    • Views: 397
    September 3rd, 2016, 16:26 Go to last post
  3. differentiation equation

    Started by markosheehan, June 11th, 2016 07:16
    acceleration, dv/dt=, dv=25+v²ds, s=.01, speed
    • Replies: 2
    • Views: 581
    July 20th, 2016, 12:26 Go to last post
  4. Help with another separable equation

    Started by jahrens, July 6th, 2016 00:56
    good, idea, ideas, isolate, mistakes
    • Replies: 4
    • Views: 711
    July 20th, 2016, 12:16 Go to last post
  5. Help with Separable Equation

    Started by jahrens, July 5th, 2016 23:48
    8/t-27^1/3, appreciated, du/dt, times, u^2
    • Replies: 2
    • Views: 551
    July 6th, 2016, 00:50 Go to last post
  6. Superposition

    Started by jmorgan, June 14th, 2016 11:43
    ∑an, arbitrary, constants, sinn.pi.xe2n2.pi2t, superposition
    • Replies: 2
    • Views: 634
    June 15th, 2016, 16:47 Go to last post
  7. Separation of Variables/ODE

    Started by jmorgan, June 7th, 2016 07:03
    distribution, rod, seperation, temperature, variables/ode
    • Replies: 4
    • Views: 628
    June 14th, 2016, 19:29 Go to last post
  8. differentiation equation: equation of motion

    Started by markosheehan, June 12th, 2016 16:04
    distance, equation, particle, point, show
    • Replies: 8
    • Views: 807
    June 13th, 2016, 05:46 Go to last post
  9. Help to find asymptotic solution of linear ode

    Started by flanker, June 3rd, 2016 04:15
    • Replies: 6
    • Views: 987
    June 10th, 2016, 12:12 Go to last post
  10. Boundary value problem

    Started by evinda, June 7th, 2016 11:27
    boundary, characteristic, polynomial, problem, solution
    • Replies: 4
    • Views: 662
    June 7th, 2016, 15:00 Go to last post
  11. Laplace transform help

    Started by Sophie, April 19th, 2016 15:31
    laplace, stuck, subbing, transform, v0=0
    • Replies: 5
    • Views: 702
    April 19th, 2016, 18:24 Go to last post
  12. Damped spring differental equation

    Started by Derby, April 17th, 2016 10:15
    2 Pages
    1 2
    dx/dt, d^2, mass, spring, x/dt^2
    • Replies: 19
    • Views: 1,533
    April 19th, 2016, 02:24 Go to last post
  13. Turning 2nd order into 1st order

    Started by WelshDave, April 17th, 2016 18:35
    2nd, d^2, equation, h/dt^2, order
    • Replies: 3
    • Views: 586
    April 18th, 2016, 14:36 Go to last post
  14. HELP: Orthogonal Trajectories

    Started by PullandTwist, April 12th, 2016 21:09
    • Replies: 2
    • Views: 613
    April 12th, 2016, 22:22 Go to last post
  15. Solution of the problem in interlaced form

    Started by mathmari, April 1st, 2016 13:11
    form, interlaced, problem, rightarrow, solution
    • Replies: 2
    • Views: 640
    April 2nd, 2016, 14:39 Go to last post
  16. Is this the general solution?

    Started by mathmari, April 1st, 2016 14:52
    equation, homogeneous, root, solution, text
    • Replies: 2
    • Views: 565
    April 1st, 2016, 15:13 Go to last post
  17. Parametric representation of a line

    Started by brunette15, March 28th, 2016 02:37
    length, line, parametric, ranges, segment
    • Replies: 2
    • Views: 613
    March 30th, 2016, 04:14 Go to last post
  18. Another field lines of 3D vector functions question

    Started by brunette15, March 23rd, 2016 23:30
    dz/dt, unsure, vector, x^2, y^2
    • Replies: 2
    • Views: 586
    March 26th, 2016, 06:49 Go to last post
  19. Field lines of 3D vector functions

    Started by brunette15, March 23rd, 2016 23:16
    curves, field, lines, vector, x^2
    • Replies: 2
    • Views: 1,559
    March 26th, 2016, 06:48 Go to last post
  20. Does the equality hold ?

    Started by evinda, March 13th, 2016 11:26
    • Replies: 2
    • Views: 669
    March 15th, 2016, 20:29 Go to last post
  21. System of differential equations involving matrices

    Started by Guest, March 8th, 2016 19:31
    $fracdydt, $mathbfyt$, differential, equations, solution
    • Replies: 4
    • Views: 752
    March 8th, 2016, 22:42 Go to last post
  22. Gauss's theorem

    Started by evinda, February 22nd, 2016 12:58
    $int_mathbbr^3, deltagx, dx=, gausss, show
    • Replies: 1
    • Views: 591
    February 22nd, 2016, 19:34 Go to last post
  23. Put the 2D nonlinear system into Polar Coordinates

    Started by Krish23, February 21st, 2016 14:40
    coordinates, polar, system, x1^3, x2^3
    • Replies: 1
    • Views: 621
    February 21st, 2016, 15:44 Go to last post
  24. Second order ODE

    Started by Guest, January 30th, 2016 21:22
    &endcases$, doty-y-x+9t, integrating, linear, solved
    • Replies: 2
    • Views: 665
    January 30th, 2016, 23:29 Go to last post
  25. Homogeneous ODE

    Started by Guest, January 30th, 2016 19:02
    $displaystyle, 2y^2-9xy+8x^2$, equation, solve, xy-3x
    • Replies: 1
    • Views: 618
    January 30th, 2016, 19:25 Go to last post
  26. Why is the syllogism wrong?

    Started by evinda, January 22nd, 2016 17:11
    $$sign, defined, geq, y=leftbeginmatrix
    • Replies: 5
    • Views: 713
    January 25th, 2016, 15:26 Go to last post
  27. Existence of solution

    Started by evinda, January 25th, 2016 07:59
    $a$, existence, leq, solution, space
    • Replies: 0
    • Views: 480
    January 25th, 2016, 07:59 Go to last post
  28. How do we get the imaginary part?

    Started by evinda, January 24th, 2016 13:12
    cos, imaginary, part, sin, |cos
    • Replies: 4
    • Views: 699
    January 24th, 2016, 17:01 Go to last post
  29. Green's function

    Started by evinda, January 24th, 2016 16:28
    function, greens, homogeneous, problem, solutions
    • Replies: 0
    • Views: 431
    January 24th, 2016, 16:28 Go to last post
  30. Wronskian

    Started by evinda, January 24th, 2016 10:55
    equation, hint, write, wronskian, y_2s
    • Replies: 0
    • Views: 311
    January 24th, 2016, 10:55 Go to last post
  31. Cauchy problem

    Started by evinda, January 22nd, 2016 13:55
    cauchy, gxi, interval, problem, thought
    • Replies: 0
    • Views: 468
    January 22nd, 2016, 13:55 Go to last post

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Top 149 Thread Starters For "Differential Equations"

RankUser NamePercentage Of TotalThreadsMost Recent Thread
1dwsmith12.690What is meant by find the time...
2evinda8.964Find sets
3mathmari8.561Limit of the solution - Which ...
4find_the_fun5.942finding interval where second ...
5shamieh3.827Use series methods to solve [2...
6Markov3.525First order PDE
7karush2.921t1.13 solve the initial value ...
7ineedhelpnow2.921Critical Points, Stability
8onie mti2.719solving a cauchy problem
8ognik2.719Another Frobenius method ODE
9alane19942.417Population Dynamics... again
9kalish2.417Solving a system of an arbitra...
10nacho2.014Chebyshev Expansion (I need he...
11grandy1.813Boundary integral method to so...
12simo1.712looking at a solitary initial ...
13bergausstein1.511Elimination of constants
14Poirot1.39Fourier transform
15Julio1.18Laplace equation and Median Va...
16Alexmahone0.86Infinitely many solutions
16Cbarker10.86Bernoulli Equation Checking th...
17shorty0.75Damped Free Forced Vibration
17Cadbury0.75Solution of the equation
17brunette150.75Parametric representation of a...
18Fantini0.64Stable and unstable manifolds ...
18oasi0.64solving ODE with series
18ssh0.64Hypergeometric equation
18suvadip0.64differential eq of first order...
18LLand3140.64Need help setting up Different...
18nathancurtis110.64Finding a value for a y(0) = ...
18stripedcat0.64Bernoulli to Linear First Orde...
19Chris L T5210.43Status of DE Tutorial
19Alan0.43Problem 13 from section 16.1 o...
19Carla19850.43Peak in single ODE within a sy...
19rsoy0.43Show whether the given ODE is ...
19ZiniaDuttaGupta0.43Stability, phase portrait, bif...
19Vishak0.43Second order inhomogeneous dif...
19Guest0.43System of differential equatio...
19frank12340.43Help on a 2nd Order Linear Dif...
19dansingh0.43reduction of linear or non lin...
19arrow270.43Fourier Transform
19DrWahoo0.43General DE questions and help
20Ackbach0.32Bessel Functions Cheat Sheet
20bkarpuz0.32Solution of the PDE?
20ifeg0.32what is the difference between...
20MacLaddy0.32Inflection Point of the Thresh...
20Sudharaka0.32Solving a Riccati Differential...
20Jason0.32ODE system. Limit cycle; Hopf ...
20madflame9910.32System of DEs
20Chipset36000.32ODE PVI problem.
20Amer0.32How to solve this Differential...
20Hurry0.32D'Lambert problem
20crevoise0.32Bernoulli / Riccati Equation
20topsquark0.32Simple pendulum, ref: POTW 156
20skatenerd0.32derivative of bessel function ...
20hatguy0.32Solving Nonlinear ODEs I
20wmccunes0.32Integrating factor, initial va...
20paulmdrdo0.32Differential Equation of Unkno...
20Kris0.32Help rearranging a linear firs...
20LATEBLOOMER0.32Differential equation populati...
20shen070.32PDE Solving Continuity Equatio...
20dearcomp0.32D.E with Physics Included
20Pranav0.32Solving a first-order differen...
20LAK0.32Separation of Variables
20cheatmenot0.32Obtaining Differential Equatio...
20rayne0.32general solution to 2nd order....
20Nikolas70.32Differential equation y/(x^2+y...
20Joppy0.32Discrete dynamical systems - I...
20markosheehan0.32differentiation equation: equa...
20jahrens0.32Help with another separable eq...
20kayella190.32Any one who can solve this?
21Ulysses0.11Partial differential equation
21Kane0.11need help with transforming on...
21issacnewton0.11vanishing wronskian for linear...
21battleman130.11A few small questions about di...
21GreenGoblin0.11Cannot isolate y (first order ...
21MarkFL0.11Using the annihilator method t...
21nonsequitter0.11Dirichlet Problem for Laplace'...
21I like Serena0.11Interesting ODE
21charlottewill0.11Volterra-Lotka system.
21caffeinemachine0.11Book Recommendation for Ordina...
21blackthunder0.11first order pde
21themurgesh0.11Integrating Factor Question
21weber0.11Series Solution of a DE
21Usagi0.11Frobenius Method Queries
21rishadjb0.11Linear ODE for a fundamental s...
21azuralshadow0.11Understanding partial solution...
21thecoop0.11Finding Critical Points of a D...
21superbread880.11Question on 1D heat equation
21U4770.11Air resistance equation
21Petrus0.11First order linear differentia...
21heaviside0.11Assistance needed for this ODE...
21ryo00710.11Nonlinear PDE
21Jerome0.11Hankel and mellin transform
21ipaper0.11A property of solution of ODE ...
21krish0.11Solving an IVP for a system of...
21ends0.11Mixing Problem?
21nuggz6190.11First Order Differential Equat...
21Bibbster0.11Second order differential help...
21shocks900.11Integrating with trigo....ODE
21emily6000.11Partial DE-separation of varia...
21ISITIEIW0.11Verify a function is a solutio...
21goku9000.11Phase Line and long term behav...
21talha0.11non-linear first order differe...
21ChemEng0.112nd order ODE (Control Systems...
21tylerbizoff0.11Heat equation with annoying so...
21zkee0.11Homogeneous Functions
21mikky05v0.11Torrcelli's law of fluids
21CWolf0.11Singular Points
21Schmidt0.11Displacement of mass spring sy...
21Aryth0.11Finding Integral Curves
21mathgirl0.11Find all solutions (integral s...
21Pascal0.11Coupled ODEs
21jakejakejake0.11Laplace Transform, Finding sol...
21Naincy0.11First order linear ODE
21danthatdude0.11Second Order Linear ODE
21Milly0.11Integration of separate variab...
21PullandTwist0.11HELP: Orthogonal Trajectories
21PeterH0.11Modelling the motion of a mete...
21Rezalt0.11Help with motions of a double ...
21marrvo0.11Find equation system for bound...
21KD17290.11Identifying the Degree of a Di...
21xichyu10.11How can the six unknown number...
21superduck13850.11Partially Decoupled System
21Ciaran0.11Changing variables DE
21kJS0.11Inverse Laplace Transform 2
21notagenuis0.11Newton's Cooling Law
21ozkan120.11What does priori estimate do i...
21tiaborrego0.11Integrating Factor
21hornekat0.11Please help me solve this diff...
21NotaMathPerson0.11Exact ODE?
21Krish230.11Put the 2D nonlinear system in...
21Derby0.11Damped spring differental equa...
21WelshDave0.11Turning 2nd order into 1st ord...
21Sophie0.11Laplace transform help
21metstandard160.11Non-linear 2nd Order ODE
21flanker0.11Help to find asymptotic soluti...
21mahmoud shaaban0.11Linear differential equation
21rozin0.11Differential equation
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21wheepep0.11Differential equation
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21Raisa0.11Self-similarity of nonlinear P...
21Roger0.11Bounded Solution For Different...
21ertagon20.11Inverse and differentation of ...
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21sumanraj0.11modeling the flow from a gate ...
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