Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Differential Equations Forum

Filter:

B I A Insights
Page 1 of 51

Sort By:
Title
Last Date ↓
Replies/Views Likes
  1. ExtravagantDreams

    Intro. to Differential Equations

    ... 3 4 5
    Jul 3, 2012
    95
    153,095
    Replies: 95
    5
  1. Josu Aguirrebeitia

    A Solution form for the following differential equation

    Oct 18, 2018 at 2:01 AM
    2
    140
    Replies: 2
    1
  2. Sam D

    I y'' + y = 0 solution and recursion relation

    Oct 17, 2018 at 5:49 AM
    3
    256
    Replies: 3
    1
  3. joshmccraney

    A Green's functions issue

    Oct 13, 2018 at 7:00 PM
    1
    342
    Replies: 1
    0
  4. kairama15

    A Gravitational Well Position

    Oct 7, 2018
    3
    165
    Replies: 3
    0
  5. joshmccraney

    A Variation of parameters, Green's functions, Wronskian

    Oct 6, 2018
    1
    185
    Replies: 1
    0
  6. sparkie

    I What exactly is linear dependency? 2nd and 3rd Order Diff EQ

    Oct 2, 2018
    1
    263
    Replies: 1
    1
  7. MathCreature

    I Using a bifurcation diagrams and time dependent parameters

    Sep 30, 2018
    2
    202
    Replies: 2
    0
  8. HumanistEngineer

    A Finite Difference Scheme - Plume Entrainment

    Sep 28, 2018
    3
    404
    Replies: 3
    0
  9. binbagsss

    Mathematical Biology- Neumann BCs, Turing Analysis

    Sep 20, 2018
    1
    209
    Replies: 1
    0
  10. bolly

    A Inverted pendulum car - pedulum will not swing

    Sep 15, 2018
    2
    205
    Replies: 2
    1
  11. joshmccraney

    I Metric for knowing when numerical BC is "good"

    ... 2
    Sep 13, 2018
    25
    984
    Replies: 25
    1
  12. Ulver48

    A Taylor expansion for a nonlinear system and Picard Iterations

    Sep 11, 2018
    3
    327
    Replies: 3
    1
  13. piggees

    I General solution to a 2nd-order differential equation

    Sep 9, 2018
    7
    413
    Replies: 7
    2
  14. ChanYoung Park

    I Real life application of Euler's method/numerical method

    Sep 7, 2018
    11
    4,356
    Replies: 11
    1
  15. APUGYael

    I Linearity of DE's

    Aug 28, 2018
    8
    191
    Replies: 8
    0
  16. m4r35n357

    I Is this numerical techique for solving ODEs widely known?

    Aug 26, 2018
    3
    546
    Replies: 3
    0
  17. fahraynk

    I Derivation of Lax-Wendroff finite volume scheme

    Aug 20, 2018
    1
    341
    Replies: 1
    0
  18. fahraynk

    I Solving PDE's with chebychev FFT

    Aug 5, 2018
    11
    603
    Replies: 11
    2
  19. osilmag

    I Chaos Theory Constants

    Jul 27, 2018
    4
    655
    Replies: 4
    6
  20. HumanistEngineer

    A 1D Convection Diffusion Equation - Inlet Mixing Effect

    Jul 27, 2018
    7
    402
    Replies: 7
    1
  21. nrqed

    A Very simple question about KP hierarchy

    Jul 14, 2018
    1
    587
    Replies: 1
    0
  22. Dimitris Papadim

    I Applications of second order linear non homogenous ordinary differential equations

    Jul 12, 2018
    1
    305
    Replies: 1
    2
  23. K Murty

    I RL circuit with polynomial forcing function solution (units)

    Jul 11, 2018
    6
    295
    Replies: 6
    7
  24. Roboto

    A Runge Kutta - units

    Jul 10, 2018
    16
    745
    Replies: 16
    3
  25. LagrangeEuler

    I Overdamping condition

    Jul 1, 2018
    3
    256
    Replies: 3
    0
  26. cg78ithaca

    A Generalization of hypergeometric type differential equation

    Jun 23, 2018
    2
    572
    Replies: 2
    0
  27. Phylosopher

    I Is the exponential function, the only function where y'=y?

    Jun 23, 2018
    11
    360
    Replies: 11
    9
  28. CE Adamson

    A ODE from Geometry Problem

    Jun 22, 2018
    6
    530
    Replies: 6
    4
  29. Mr Davis 97

    I SHM and the sign of k

    Jun 15, 2018
    2
    346
    Replies: 2
    0
  30. robinegberts

    A Asymptotic solutions to a differential equation

    Jun 13, 2018
    1
    275
    Replies: 1
    1
  31. morenopo2012

    I Heat equation plus a constant

    Jun 13, 2018
    1
    288
    Replies: 1
    0
  32. K Murty

    I Using complex numbers or phasor transform to solve O.D.E's

    Jun 1, 2018
    3
    557
    Replies: 3
    2
  33. mertcan

    A Spectral Theorem to Convert PDE into ODE

    May 30, 2018
    3
    627
    Replies: 3
    0
  34. LSMOG

    I Second order ordinary differential equation to a system of first order

    May 26, 2018
    3
    416
    Replies: 3
    0
  35. Riotto

    I Can all differential equations be turned into algebraic equations via the FT?

    May 25, 2018
    1
    323
    Replies: 1
    0
  36. joshmccraney

    A Inverse ODE, Green's Functions, and series solution

    May 19, 2018
    4
    593
    Replies: 4
    2
  37. Gribouille

    A Vector differential equation

    May 17, 2018
    6
    688
    Replies: 6
    1
  38. arehman1289

    A Stefan Problem

    May 8, 2018
    1
    266
    Replies: 1
    0
  39. joshmccraney

    A RK4 on numerical RHS

    May 2, 2018
    5
    559
    Replies: 5
    1
  40. Voq

    I Linear differential equation

    May 1, 2018
    1
    391
    Replies: 1
    1
  41. swampwiz

    I What is term for DEQ that only has terms of a derivative?

    Apr 30, 2018
    4
    277
    Replies: 4
    0
  42. timetraveller123

    Confusion about series solutions to differential equations

    Apr 30, 2018
    10
    800
    Replies: 10
    5
  43. Karagoz

    B What's the difference between 1000e^0.05t and 1000*1.05^t?

    Apr 22, 2018
    5
    436
    Replies: 5
    0
  44. dRic2

    I What does this line mean?

    Apr 18, 2018
    12
    588
    Replies: 12
    4
  45. synMehdi

    A Pontryagin minimum principle with control constraints

    Apr 5, 2018
    8
    665
    Replies: 8
    2
  46. joshmccraney

    A Green's function not self adjoint for self adjoint ODE

    Apr 3, 2018
    1
    497
    Replies: 1
    0
  47. mertcan

    A Runge Kutta finite difference of differential equations

    Apr 3, 2018
    6
    752
    Replies: 6
    0
  48. Christofer Br

    B How to calculate travel time as a function of distance

    Apr 2, 2018
    6
    397
    Replies: 6
    0
  49. Arman777

    I Cauchy-Euler Diff. Eqn

    Apr 2, 2018
    4
    451
    Replies: 4
    0
  50. hunt_mat

    A Stability for a system of nonlinear ODEs

    Mar 27, 2018
    9
    805
    Replies: 9
    0
  51. wmrunner24

    A Intermediate Axis Theorem - Lyapunov's Indirect Method

    Mar 25, 2018
    1
    462
    Replies: 1
    0
  52. Another

    I Laplace's equation

    Mar 21, 2018
    3
    501
    Replies: 3
    0
  53. joshmccraney

    A Solving an ODE Eigenvalue Problem via the Ritz method

    Mar 15, 2018
    1
    560
    Replies: 1
    0
  54. Dubz

    I Cross product?

    Mar 15, 2018
    2
    402
    Replies: 2
    0
  55. Another

    I Laplace's equation in 3 D

    Mar 14, 2018
    5
    434
    Replies: 5
    0
  56. joshmccraney

    A Legendre's ODE

    Mar 7, 2018
    5
    584
    Replies: 5
    3
  57. learn.steadfast

    I Minimizing a non-linear ODE in f, f_t

    Mar 2, 2018
    5
    539
    Replies: 5
    0
  58. Tunalover

    I A common 2nd order ODE from dynamics but...

    Feb 28, 2018
    8
    492
    Replies: 8
    1
  59. Atr cheema

    A How to simplify the solution of the following linear homogeneous ODE?

    Feb 23, 2018
    1
    678
    Replies: 1
    0
  60. Atr cheema

    I How to find a solution to this linear ODE?

    Feb 22, 2018
    4
    615
    Replies: 4
    0
  61. AAli

    I Trying to obtain a 2nd order ODE

    Feb 21, 2018
    6
    650
    Replies: 6
    1
  62. hunt_mat

    A Applying boundary conditions on an almost spherical body

    Feb 21, 2018
    3
    533
    Replies: 3
    0
  63. SemM

    A Solve a non-linear ODE of third order

    Feb 20, 2018
    5
    543
    Replies: 5
    2
  64. hugo_faurand

    B Calculate the expression of the antiderivative

    Feb 19, 2018
    9
    533
    Replies: 9
    0
  65. joshmccraney

    A Green's Function and Variation of Parameters

    Feb 13, 2018
    1
    521
    Replies: 1
    0
  66. BWV

    I Neural Networks vs Traditional Numerical Methods

    Feb 12, 2018
    2
    502
    Replies: 2
    0
  67. JTC

    A Causality in differential equations

    Feb 10, 2018
    3
    558
    Replies: 3
    1
  68. Hologram0110

    A Numerical solution techniques for 6th order PDE's

    Feb 3, 2018
    1
    458
    Replies: 1
    0
  69. SirVuk

    I What is the propagation speed of a diffusion

    Jan 27, 2018
    4
    863
    Replies: 4
    1
  70. Dor

    A Numerical solution for a two dimensional 3rd order nonlinear diff. eq.

    Jan 22, 2018
    1
    686
    Replies: 1
    0
  71. solanojedi

    A Heat equation on infinite domain

    Jan 20, 2018
    3
    564
    Replies: 3
    0
  72. solanojedi

    A Wave equation in free space

    Jan 18, 2018
    17
    824
    Replies: 17
    0
  73. Mzzed

    I Boundary Conditions for System of PDEs

    Jan 18, 2018
    1
    439
    Replies: 1
    1
  74. joshmccraney

    A Solving linear 2nd order IVP non-constant coefficient

    Jan 14, 2018
    15
    759
    Replies: 15
    3
  75. Ali Baig

    I Complex Fourier Series

    Jan 11, 2018
    2
    562
    Replies: 2
    0
  76. JTC

    A Newmark-Beta vs Predictor Corrector

    Jan 11, 2018
    2
    650
    Replies: 2
    0
  77. Krikri

    A Green's Function ODE BVP

    Jan 9, 2018
    3
    544
    Replies: 3
    0
  78. Ali Baig

    I Classification of First Order Linear Partial Differential Eq

    Jan 5, 2018
    1
    553
    Replies: 1
    1
  79. Mzzed

    I Method for solving gradient of a vector

    Jan 4, 2018
    5
    505
    Replies: 5
    3
  80. ondine4

    I Ode using Fourier Transform

    Jan 2, 2018
    6
    699
    Replies: 6
    5
  81. goggles31

    I How to find the transfer function of xy, xy' etc?

    Dec 30, 2017
    1
    523
    Replies: 1
    0
  82. fahraynk

    A Can Newton's method work with an approximated integral

    Dec 29, 2017
    6
    603
    Replies: 6
    2
  83. Joao

    B Wave equation, psi with dots and things like that...

    Dec 29, 2017
    5
    379
    Replies: 5
    3
  84. JTC

    I Using Complex Numbers to find the solutions (simple Q.)

    Dec 29, 2017
    3
    422
    Replies: 3
    1
  85. grilo

    Nonhomogeneous ODE with Dirac delta

    Dec 26, 2017
    1
    2,223
    Replies: 1
    0
  86. dongsh2

    A How to calculate confluent Heun functions numerically?

    Dec 25, 2017
    1
    580
    Replies: 1
    0
  87. big dream

    A Difficult partial differential Problem

    Dec 24, 2017
    2
    599
    Replies: 2
    2
  88. Tio Barnabe

    I Solving for constants in a differential equation

    Dec 17, 2017
    3
    618
    Replies: 3
    1
  89. toumbous

    A Spheroidal Wave Equation

    Dec 15, 2017
    1
    448
    Replies: 1
    0
  90. themagiciant95

    I Intuition behind Cauchy–Riemann equations

    Dec 15, 2017
    12
    800
    Replies: 12
    3
  91. joshmccraney

    A Matched Asymptotic Expansion and stretching variables

    Dec 11, 2017
    1
    383
    Replies: 1
    0
  92. stockzahn

    A Laplace Equation for an annular geometry with different BC

    Dec 11, 2017
    7
    566
    Replies: 7
    2
  93. highflyyer

    A Solving a PDE in four variables without separation of variables

    Dec 11, 2017
    4
    486
    Replies: 4
    2
  94. smmr89

    A Finite Difference solver for 2D Elasticity equations

    Dec 10, 2017
    3
    1,004
    Replies: 3
    0
  95. SeM

    I Initial conditions for an ODE

    Dec 8, 2017
    10
    584
    Replies: 10
    3
  96. dRic2

    I Non-constant coefficient

    Nov 30, 2017
    19
    696
    Replies: 19
    4
  97. SeM

    I Convert complex ODE to matrix form

    Nov 27, 2017
    2
    530
    Replies: 2
    0
  98. SeM

    I Norm of a Functional and wavefunction analysis

    Nov 27, 2017
    3
    638
    Replies: 3
    1
  99. knockout_artist

    B A function in an ode.

    Nov 26, 2017
    2
    464
    Replies: 2
    0
  100. Alexander350

    B Solving a differential equation with a unit vector in it

    Nov 26, 2017
    13
    632
    Replies: 13
    0
Showing threads 1 to 100 of 5,007

Thread Display Options

Loading...
Page 1 of 51
Join in expert discussion on differential equation topics. Differential equations are an equation involving derivatives of a function or functions. Help in solving ODE and PDE problems. Homework help is available.