Differential Equations Forum

Join in expert discussion on differential equation topics like ODE and PDE. Differential equations are an equation involving derivatives of a function or functions.

Threads

Graduate Third order differential equation

  • electronic engineer
  • · Replies 3 ·
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3

Graduate What are the solutions to this equation called?

  • Labyrinth
  • · Replies 6 ·
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6

-307 order and whether or not it is linear

  • karush
  • · Replies 1 ·
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1

Graduate Numerical Approximation of a Rocket's motion

  • Mardlamock
  • · Replies 3 ·
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3

Graduate Double pendulum - solving with energy and Simulink

  • aaddcc
  • · Replies 1 ·
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1

Graduate Solve ODE: (x^2+2)y'''-(x^2+2x+2)y''+2(x+1)y'-2y=0

  • GodsmacK
  • · Replies 2 ·
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2

Graduate Some tip you can share to solve this equation?

  • GodsmacK
  • · Replies 1 ·
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1

Graduate System of two second order ODE's

  • chenrim
  • · Replies 6 ·
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6

Graduate Good texts for solving PDE's by integral transforms

  • Maths Lover
  • · Replies 2 ·
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2

Graduate Solving Special Function Equations Using Lie Symmetries

  • bolbteppa
  • · Replies 6 ·
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6

Graduate Tenenbaum & Pollard Pages 53-54: Apparently does not make sense

  • xorg
  • · Replies 5 ·
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5

Why is the integration result not -xe^-x - e^-x?

  • Cadbury
  • · Replies 3 ·
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3
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8

Finding the Solution to a Differential Equation Passing Through (1,2)

  • Cadbury
  • · Replies 4 ·
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4

Linearly independence using Wronskian?

  • Cadbury
  • · Replies 3 ·
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3

Finding General Solution vs Solving Differential Equations

  • ifeg
  • · Replies 6 ·
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6

Undergrad Initial guess in Newton's method

  • Maged Saeed
  • · Replies 7 ·
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7
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2

Reduce an equation to a homogenous equation?

  • Cadbury
  • · Replies 3 ·
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3

Graduate Inner product structure for classical diff equations

  • julian
  • · Replies 2 ·
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2

Graduate Solving an ODE using shooting method

  • spaghetti3451
  • · Replies 3 ·
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3

Undergrad Is the Solution of a Differential Equation Always Unique?

  • moh salem
  • · Replies 5 ·
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5

Graduate Wronskian of the confluent hypergeometric functions

  • Domdamo
  • · Replies 7 ·
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7

Graduate Relationship between DEs and infinite series.

  • ellipsis
  • · Replies 3 ·
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3

Graduate Understanding existence theorem of (strong) solution of SDE

  • Paalfaal
  • · Replies 2 ·
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2

Graduate General Solution to a certain form of ODE

  • CSteiner
  • · Replies 3 ·
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3

Graduate What are the Boundary Conditions for Solving Poisson's Equation?

  • DivergentSpectrum
  • · Replies 2 ·
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2

Graduate Challenge 15: Worshipping the Moon

  • micromass
  • · Replies 9 ·
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9

Graduate Sturm-Liouville confusion

  • fayled
  • · Replies 3 ·
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3

Why is the interval solution this?

  • find_the_fun
  • · Replies 4 ·
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4

Graduate What is the connection between the Wronskian and linear independence?

  • MathewsMD
  • · Replies 2 ·
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2

Graduate C2-solutions to a diff.equation.

  • Hatmpatn
  • · Replies 1 ·
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1

How Long Until the Ball Hits the Ground?

  • YOLOSWAG1
  • · Replies 3 ·
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3

Undergrad Linearity of ODE: (1 x^2) dy/dx + y = 0

  • RiceKernel
  • · Replies 4 ·
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4

Graduate Modelling the motion of a meteor

  • PeterH
  • · Replies 5 ·
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5

Graduate Differential equation/Integration problem

  • JulieK
  • · Replies 2 ·
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2

Undergrad Forming a general summation of terms

  • MathewsMD
  • · Replies 3 ·
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3

Undergrad How Does Changing Sign Conventions Affect the Equations for Motion?

  • MathewsMD
  • · Replies 4 ·
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4

Modelling the motion of a meteor

  • PeterH
  • · Replies 3 ·
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3

Graduate Finite difference discretization for systems of higher ODEs

  • Ojo Saheed
  • · Replies 3 ·
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3

Graduate How can you find this differential equation?

  • Lamebert
  • · Replies 7 ·
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7

Where Does the Convolution Theorem Come From?

  • bugatti79
  • · Replies 11 ·
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11

Undergrad Why does the 2nd order homogeneous linear ODE have 2 general solutions?

  • kidsasd987
  • · Replies 1 ·
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1

Graduate Why is a set of functions v(t) dense in L^2

  • 4real4sure
  • · Replies 2 ·
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2

Graduate Very simple: second order derivative in wave equation

  • mr_sparxx
  • · Replies 3 ·
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3

Undergrad "State of the Art" in nonlinear differential equations?

  • Mr. Moose
  • · Replies 5 ·
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5

Approximate solution for non-linear ODE

  • topsquark
  • · Replies 2 ·
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2

Undergrad Trouble Setting Up Equation for Weight Loss Over Time

  • ilikeintegrals
  • · Replies 1 ·
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1

Graduate The energy in the linear stability analysis

  • jollage
  • · Replies 6 ·
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6

Coupled non-linear system of ODEs

  • topsquark
  • · Replies 5 ·
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5

Graduate Why Normalize Boundary Conditions in PDEs?

  • garcijon
  • · Replies 1 ·
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1

Graduate Partial Derivatives: Solving y^2=uy-v

  • theleftside
  • · Replies 5 ·
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5

Graduate What Are the Possible Equilibrium States in Tank Systems Using a Ratio Approach?

  • MathewsMD
  • · Replies 1 ·
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1

Graduate How do I apply rk4 to a second order pde?

  • DivergentSpectrum
  • · Replies 11 ·
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11

Graduate Sturm-Liouville Equation. Question about different forms.

  • DiogenesTorch
  • · Replies 4 ·
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4

Graduate Numerical method for wave equation

  • semc
  • · Replies 2 ·
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2

Graduate How to make my equation fancier?

  • PhyAmateur
  • · Replies 1 ·
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1

Graduate Numerical Solution for ODE with Critical Point: A General Procedure Guide

  • Vrbic
  • · Replies 10 ·
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10

Graduate Solving Differential Eqs with Critical Point: Initial Conditions & Solutions

  • Vrbic
  • · Replies 1 ·
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1

Graduate How Does the Inverse Scattering Method Apply to Soliton Equations?

  • test1234
  • · Replies 10 ·
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10

Graduate The Differential operator and it's limitations

  • BiGyElLoWhAt
  • · Replies 16 ·
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16

Graduate Stability criteria of heat-like equation

  • Hypatio
  • · Replies 1 ·
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1

Sum of Sequence $(a_{n+1}+3)(2-a_n)=6$ to 100

  • Albert1
  • · Replies 2 ·
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2

Graduate Details regarding Legendre Polynomials

  • MathewsMD
  • · Replies 7 ·
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7

Graduate Modeling a car slowing down from speed

  • Belacan
  • · Replies 2 ·
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2

Linear ode; how does answer key get this?

  • find_the_fun
  • · Replies 7 ·
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7

Is This ODE Solvable by Substitution?

  • find_the_fun
  • · Replies 3 ·
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3

Graduate Derivative of d'Alambert operator?

  • Dixanadu
  • · Replies 1 ·
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1

Graduate Jacobian Matrix for Polar Coordinates

  • adamwitt
  • · Replies 5 ·
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5

Graduate Simplifying Integrals with Coefficients

  • MathewsMD
  • · Replies 12 ·
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12

Graduate Systems of Differential Eq (Undetermined Coefficients)

  • champ2029
  • · Replies 1 ·
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1

Graduate Why is the Particular Solution Different in Nonlinear System Equilibria?

  • BrainHurts
  • · Replies 2 ·
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2

Graduate How Do Fourier Integral Operators Work in Mathematical Analysis?

  • super_al57
  • · Replies 2 ·
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2

Graduate Can you prove a differential equation has no analytical solution?

  • chener
  • · Replies 9 ·
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9

Graduate Finite Difference Expressed As a Probability Generating Function

  • MisterX
  • · Replies 2 ·
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2

Graduate Solving Complex Diff EQ: z'(t) = az(t) Explanation & Books

  • BrainHurts
  • · Replies 7 ·
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7

Graduate The relationship between solutions

  • ShayanJ
  • · Replies 1 ·
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1

Solving Cauchy-Euler Equation with Constant Coefficients

  • find_the_fun
  • · Replies 1 ·
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1

Graduate Adiabatic evolution and floquet theorem

  • paolorossi
  • · Replies 2 ·
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2

Undergrad Method of Variation of Coefficients

  • Husaaved
  • · Replies 6 ·
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6

Graduate Understanding PDE Solutions: N=0 vs N≥1 Cases

  • member 428835
  • · Replies 16 ·
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16

Graduate What is my guess for a polynomial solution with a negative highest power?

  • Kyle Parrott
  • · Replies 2 ·
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2

Graduate Help: Analytical Solution to Coupled ODE

  • Raz91
  • · Replies 2 ·
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2

Graduate Determining # of Solutions for DEs

  • MathewsMD
  • · Replies 5 ·
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5

Undergrad Solve Differential Equation: dy/dx = dt

  • suma
  • · Replies 7 ·
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7

Graduate General solution to a 6th order DE

  • MathewsMD
  • · Replies 2 ·
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2

Graduate How does the Wronskian determine uniqueness of solution?

  • MathewsMD
  • · Replies 2 ·
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2

Undergrad Does this curl operator equal 1?

  • leroile
  • · Replies 1 ·
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1

Graduate What is the Fourier transform of cos(2πf0x - π/4)?

  • thatguy14
  • · Replies 2 ·
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2

Graduate Why Does ∂f/∂y Determine the Uniqueness of y in Differential Equations?

  • MathewsMD
  • · Replies 2 ·
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2

Graduate Have a software that solves Helmholtz equation, can I use it for Poisson?

  • Amani_lama112
  • · Replies 5 ·
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5

Graduate Help with MTW Exercise 6.9 - Yes/No Answer

  • TerryW
  • · Replies 9 ·
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9

Undergrad Creating an Exponential decay equation for given parameters

  • shakystew
  • · Replies 4 ·
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4

Graduate Runge Kutta question, equation has dx/dt in it and non linear term ?

  • someguy23
  • · Replies 5 ·
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5

Graduate Why Do We Use the Indicial Equation for Coefficients in Bessel Equations?

  • member 428835
  • · Replies 10 ·
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10

Graduate Von Neumann Analysis: Refresh Numerical Science | Any Help Appreciated

  • liquidFuzz
  • · Replies 1 ·
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1

Graduate What form for the particular integral of this 2nd order Diff Eqn

  • bugatti79
  • · Replies 1 ·
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1
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7

Learn Implicit Differentiation: Solving for r^2 in $y^2 + x^2 = 0

  • nacho-man
  • · Replies 2 ·
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2

Graduate Mehrstellenverfahren for different grid spacing along the three space directions

  • kolmog
  • · Replies 2 ·
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2