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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: 794
    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: 716
    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: 1,709
    July 10th, 2013, 04:41 Go to last post
  1. Normal Thread Normal Threads

  2. Separation of Variables/ODE

    Started by jmorgan, June 7th, 2016 07:03
    distribution, rod, seperation, temperature, variables/ode
    • Replies: 4
    • Views: 292
    June 14th, 2016, 19:29 Go to last post
  3. differentiation equation: equation of motion

    Started by markosheehan, June 12th, 2016 16:04
    distance, equation, particle, point, show
    • Replies: 8
    • Views: 332
    June 13th, 2016, 05:46 Go to last post
  4. Help to find asymptotic solution of linear ode

    Started by flanker, June 3rd, 2016 04:15
    • Replies: 6
    • Views: 415
    June 10th, 2016, 12:12 Go to last post
  5. Boundary value problem

    Started by evinda, June 7th, 2016 11:27
    boundary, characteristic, polynomial, problem, solution
    • Replies: 4
    • Views: 271
    June 7th, 2016, 15:00 Go to last post
  6. Laplace transform help

    Started by Sophie, April 19th, 2016 15:31
    laplace, stuck, subbing, transform, v0=0
    • Replies: 5
    • Views: 414
    April 19th, 2016, 18:24 Go to last post
  7. 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: 922
    April 19th, 2016, 02:24 Go to last post
  8. 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: 340
    April 18th, 2016, 14:36 Go to last post
  9. HELP: Orthogonal Trajectories

    Started by PullandTwist, April 12th, 2016 21:09
    • Replies: 2
    • Views: 335
    April 12th, 2016, 22:22 Go to last post
  10. Solution of the problem in interlaced form

    Started by mathmari, April 1st, 2016 13:11
    form, interlaced, problem, rightarrow, solution
    • Replies: 2
    • Views: 367
    April 2nd, 2016, 14:39 Go to last post
  11. Is this the general solution?

    Started by mathmari, April 1st, 2016 14:52
    equation, homogeneous, root, solution, text
    • Replies: 2
    • Views: 352
    April 1st, 2016, 15:13 Go to last post
  12. Parametric representation of a line

    Started by brunette15, March 28th, 2016 02:37
    length, line, parametric, ranges, segment
    • Replies: 2
    • Views: 354
    March 30th, 2016, 04:14 Go to last post
  13. 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: 312
    March 26th, 2016, 06:49 Go to last post
  14. Field lines of 3D vector functions

    Started by brunette15, March 23rd, 2016 23:16
    curves, field, lines, vector, x^2
    • Replies: 2
    • Views: 360
    March 26th, 2016, 06:48 Go to last post
  15. Does the equality hold ?

    Started by evinda, March 13th, 2016 11:26
    • Replies: 2
    • Views: 429
    March 15th, 2016, 20:29 Go to last post
  16. System of differential equations involving matrices

    Started by Guest, March 8th, 2016 19:31
    $fracdydt, $mathbfyt$, differential, equations, solution
    • Replies: 4
    • Views: 431
    March 8th, 2016, 22:42 Go to last post
  17. Gauss's theorem

    Started by evinda, February 22nd, 2016 12:58
    $int_mathbbr^3, deltagx, dx=, gausss, show
    • Replies: 1
    • Views: 364
    February 22nd, 2016, 19:34 Go to last post
  18. 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: 373
    February 21st, 2016, 15:44 Go to last post
  19. Second order ODE

    Started by Guest, January 30th, 2016 21:22
    &endcases$, doty-y-x+9t, integrating, linear, solved
    • Replies: 2
    • Views: 447
    January 30th, 2016, 23:29 Go to last post
  20. Homogeneous ODE

    Started by Guest, January 30th, 2016 19:02
    $displaystyle, 2y^2-9xy+8x^2$, equation, solve, xy-3x
    • Replies: 1
    • Views: 394
    January 30th, 2016, 19:25 Go to last post
  21. Why is the syllogism wrong?

    Started by evinda, January 22nd, 2016 17:11
    $$sign, defined, geq, y=leftbeginmatrix
    • Replies: 5
    • Views: 444
    January 25th, 2016, 15:26 Go to last post
  22. Existence of solution

    Started by evinda, January 25th, 2016 07:59
    $a$, existence, leq, solution, space
    • Replies: 0
    • Views: 338
    January 25th, 2016, 07:59 Go to last post
  23. How do we get the imaginary part?

    Started by evinda, January 24th, 2016 13:12
    cos, imaginary, part, sin, |cos
    • Replies: 4
    • Views: 417
    January 24th, 2016, 17:01 Go to last post
  24. Green's function

    Started by evinda, January 24th, 2016 16:28
    function, greens, homogeneous, problem, solutions
    • Replies: 0
    • Views: 319
    January 24th, 2016, 16:28 Go to last post
  25. Wronskian

    Started by evinda, January 24th, 2016 10:55
    equation, hint, write, wronskian, y_2s
    • Replies: 0
    • Views: 211
    January 24th, 2016, 10:55 Go to last post
  26. Cauchy problem

    Started by evinda, January 22nd, 2016 13:55
    cauchy, gxi, interval, problem, thought
    • Replies: 0
    • Views: 303
    January 22nd, 2016, 13:55 Go to last post
  27. [SOLVED] Help with Froebenious method

    Started by ognik, January 13th, 2016 21:47
    2alpha, 2a_j+1k+j+1, a_j+2k+j+2k+j+1, a_lambda, sum
    • Replies: 1
    • Views: 368
    January 15th, 2016, 18:20 Go to last post
  28. [SOLVED] Another Frobenius method ODE

    Started by ognik, January 14th, 2016 19:07
    .fk, a_j, forbenius, ode
    • Replies: 0
    • Views: 261
    January 14th, 2016, 19:07 Go to last post
  29. Why do we use this relation?

    Started by evinda, January 14th, 2016 13:12
    $sigma, $xt$, $yt$, geq, leq
    • Replies: 0
    • Views: 273
    January 14th, 2016, 13:12 Go to last post
  30. How do we deduce that there is such a point?

    Started by evinda, January 14th, 2016 09:42
    $yx0$, leq, show, solution, x_0$
    • Replies: 2
    • Views: 349
    January 14th, 2016, 11:24 Go to last post
  31. [SOLVED] Please check Eulers ODE

    Started by ognik, January 12th, 2016 17:49
    $x^p, n^2, ode, substituting, x^p
    • Replies: 1
    • Views: 305
    January 13th, 2016, 01:19 Go to last post

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