Differential Equations Forum

Graduate What are the benefits of studying Fourier series in physics?

Undergrad What is the Laplace Transform of L[y2]?

Graduate Solving Poison's Equation - Method Explanation

Undergrad Solution to nonlinear ODE with radicals

Undergrad System of piecewise differential equations - Where to start?

Graduate Nonlinear differential equation (Laplace transform?)

Radioactive Substance Decay: ~14g Left After 3 Years

Differential Equations Tutorial Will Return....Soon

Graduate Solving Non-Homogeneous Poisson Equation: Techniques and Practice Problems

Graduate Anyone have any ideas on a technique to tackle this pde

Graduate Cauchy Euler, non-homogeneous, weird condition

Undergrad First Order, Non-Linear DE - Not Seperable

Undergrad Differential equation with three variables

Graduate Why Can't I Derive the Euler-Lagrange Equation from Local Gradients in F?

Is there a proof for the Bessel function of order 1?

Graduate Integrating (x - 2xy + e^y) dx for a Constant y_i

Graduate Phase line problem, my given solution is wrong I believe

Undergrad My issue with using eigenfunction expansion for ODEs

Graduate Closed form solution heat problem

Graduate Separation of variables , but for 2nd order

Graduate PDE Helmholtz eq. in 3D + boundary value)

Really simple, system in equilibrium (weight and tension in light string)

Graduate Frobenius Method - Roots differ by integer

Graduate Particle motion ode (1st order nonlinear nonhomog)

Graduate Greens functions inspection method

Solving the General Bernoulli / Riccati Equation

Graduate Is the Uniqueness of the Laplace Transform Affected by Function Form?

Graduate Inverse Laplace transform with unit step function

Graduate Fundamental Solution to Laplace Equation

Graduate Solving Navier Stoke Problem with 3D Equation and Lubrication Approximation

Graduate Efficiently Solve PDE Systems: Expert Tips and Solutions | Help Needed

Undergrad What is the Integration Process for a Logistic Equation?

Graduate Understanding the Limitations of the Euler Method in Computational Physics

Integration of a First order for physical application

Graduate Second ODE, initial conditions are zeros at infinity

Graduate Linear control ODE - exponential convergence?

Graduate Method of undetermined coefficients, when to raise the guess

Linear ODE for a fundamental solution set

Graduate Wave equation with nonhomogenous neumann BC

Graduate What is the exact form of the zeros of Hermite polynomials?

Undergrad What is the definition of a coefficient

Series Solution for DE to Solving with Zill's Book

Graduate Kernel/basis function for multiply connected region

Graduate Variable substitution in Langevin equation and Fokker-Planck equation

Graduate How to Decouple a System of 3 Coupled Linear PDEs?

Graduate Deriving Probability Density Functions from Partial Differential Equations?

Graduate Analytical solution to integro-differential equation

Graduate First-Order Nonlinear ODE from transient heat transfer

Graduate Questions about Legendre Equation

Graduate Interval Restriction on Solutions to First Order Linear Equation

Graduate How Do You Solve for Non-Zero Steady States in a Tri-Variable ODE System?

Graduate Solving for Magnetic Fields from time varying Electric fields

Graduate 1 = 0 <- What goes fundamentally wrong? Delta distribution

Graduate Question of Galerkins method of weighted residual- the physical meaning

Undergrad How are differential equations developed

Undergrad Domain in Laplace - Physical Explanation

Graduate How does DEL(dot)V differ from V(dot)DEL?

Undergrad Solving Particular Integrals - Hi Folks!

Graduate Solving Poisson Equation by using FDM

Undergrad Uniqueness Theorem: Finding region

Graduate Fourier Transform help (bit )

Graduate Seeking closed form solution of Navier-Stokes for a fluid in an annular space.

Graduate Finding a solution for Relativistic Acceleration

Graduate Solving linear differential equations by factoring

Undergrad How do differentials really work?

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Graduate Converting dependable variable to independant and vice versa

Graduate PDE : Can not solve Helmholtz equation

Graduate Weird double integral. Please help

Graduate Optimizing Decompression Stop Depth with Partial Derivatives in PDE Simulation

Graduate How Can I Solve x^2y'' + 2xy' +(2x+1)y = 1 Using Laplace Transforms?

Substitution to solve fourth order diff equation

Graduate Has anybody got a cleaner solution?

Graduate Cramer's Rule application in differential equations

Undergrad Is there any book talking about system of 2nd order ODE?

Graduate Analyzing Nonlinear Differential Equations: Do Analytic Solutions Exist?

Graduate Global Errors when solving the Equation of Motion

Graduate Derivative of Dirac Delta function

Graduate Problem with finding the complementary solution of ODE

Graduate A nonlinear difference equation

Undergrad Can You Always Factor the Denominator in Partial Fraction Expansion?

Undergrad 2nd Order Homogenous ODE (Two solutions?)

Wave Equation PDE: Help Solve Test Problem

Graduate Transform of a piecewise continuous function

Graduate Can Bessel's equation be solved using only Frobenius method?

Wave equation and weird notation

Graduate Trying to get exact solution for a nonlinear DE

Graduate How are they differentiating this ODE?

Graduate Taking the inverse laplace of this?

Graduate Coupled Nonlinear Differential Equations

Undergrad Solution of two first order differential equation with one algebraic equation.

Graduate Y1 = xe^(rx) and y2 = e^(rx): how y1 was discovered?

Graduate Implicit Methods for Drag-Dependent Acceleration in Euler Integration

Graduate Can Euler's Differential Equation Be Solved Using Initial Values?

Maths Mechanics (M1): Calculate Initial Velocity & Acceleration

Undergrad More than N Solutions to Nth Order DE?

Graduate Change of variables of differential equation

Undergrad Fundamental- solving a second order differential equation

Graduate Differential Equations 2 order and objectives

Undergrad Dif.eq. with trigonometric functions involving y