Differential Equations Forum

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Join in expert discussion on differential equation topics like ODE and PDE. Differential equations are an equation involving derivatives of a function or functions.
Undergrad Solution to nonlinear ODE with radicals
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Undergrad System of piecewise differential equations - Where to start?
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Graduate Nonlinear differential equation (Laplace transform?)
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MHB Radioactive Substance Decay: ~14g Left After 3 Years
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MHB Differential Equations Tutorial Will Return....Soon
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Graduate Solving Non-Homogeneous Poisson Equation: Techniques and Practice Problems
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Graduate Anyone have any ideas on a technique to tackle this pde
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Graduate Cauchy Euler, non-homogeneous, weird condition
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Undergrad First Order, Non-Linear DE - Not Seperable
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Undergrad Differential equation with three variables
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Graduate Why Can't I Derive the Euler-Lagrange Equation from Local Gradients in F?
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MHB Is there a proof for the Bessel function of order 1?
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Graduate Integrating (x - 2xy + e^y) dx for a Constant y_i
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Graduate Phase line problem, my given solution is wrong I believe
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Undergrad My issue with using eigenfunction expansion for ODEs
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Graduate Closed form solution heat problem
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Graduate Separation of variables , but for 2nd order
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Graduate PDE Helmholtz eq. in 3D + boundary value)
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MHB Really simple, system in equilibrium (weight and tension in light string)
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Graduate Frobenius Method - Roots differ by integer
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Graduate Particle motion ode (1st order nonlinear nonhomog)
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Graduate Greens functions inspection method
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MHB Solving the General Bernoulli / Riccati Equation
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Graduate Is the Uniqueness of the Laplace Transform Affected by Function Form?
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Graduate Inverse Laplace transform with unit step function
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Graduate Fundamental Solution to Laplace Equation
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Graduate Solving Navier Stoke Problem with 3D Equation and Lubrication Approximation
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Graduate Efficiently Solve PDE Systems: Expert Tips and Solutions | Help Needed
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Undergrad What is the Integration Process for a Logistic Equation?
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Graduate Understanding the Limitations of the Euler Method in Computational Physics
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MHB Integration of a First order for physical application
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Graduate Second ODE, initial conditions are zeros at infinity
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Graduate Linear control ODE - exponential convergence?
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Graduate Method of undetermined coefficients, when to raise the guess
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MHB Linear ODE for a fundamental solution set
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Graduate Wave equation with nonhomogenous neumann BC
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Graduate What is the exact form of the zeros of Hermite polynomials?
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Undergrad What is the definition of a coefficient
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MHB Series Solution for DE to Solving with Zill's Book
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Graduate Kernel/basis function for multiply connected region
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Graduate Variable substitution in Langevin equation and Fokker-Planck equation
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Graduate How to Decouple a System of 3 Coupled Linear PDEs?
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Graduate Deriving Probability Density Functions from Partial Differential Equations?
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Graduate Analytical solution to integro-differential equation
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Graduate First-Order Nonlinear ODE from transient heat transfer
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Graduate Questions about Legendre Equation
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Graduate Interval Restriction on Solutions to First Order Linear Equation
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Graduate How Do You Solve for Non-Zero Steady States in a Tri-Variable ODE System?
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Graduate Solving for Magnetic Fields from time varying Electric fields
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Graduate 1 = 0 <- What goes fundamentally wrong? Delta distribution
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Graduate Question of Galerkins method of weighted residual- the physical meaning
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Undergrad How are differential equations developed
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Undergrad Domain in Laplace - Physical Explanation
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Graduate How does DEL(dot)V differ from V(dot)DEL?
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Undergrad Solving Particular Integrals - Hi Folks!
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Graduate Solving Poisson Equation by using FDM
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Undergrad Uniqueness Theorem: Finding region
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Graduate Fourier Transform help (bit )
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Graduate Seeking closed form solution of Navier-Stokes for a fluid in an annular space.
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Graduate Finding a solution for Relativistic Acceleration
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Graduate Solving linear differential equations by factoring
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Undergrad How do differentials really work?
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Graduate Converting dependable variable to independant and vice versa
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Graduate PDE : Can not solve Helmholtz equation
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Graduate Weird double integral. Please help
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Graduate Optimizing Decompression Stop Depth with Partial Derivatives in PDE Simulation
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Graduate How Can I Solve x^2y'' + 2xy' +(2x+1)y = 1 Using Laplace Transforms?
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MHB Substitution to solve fourth order diff equation
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Graduate Has anybody got a cleaner solution?
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Graduate Cramer's Rule application in differential equations
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Undergrad Is there any book talking about system of 2nd order ODE?
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Graduate Analyzing Nonlinear Differential Equations: Do Analytic Solutions Exist?
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Graduate Global Errors when solving the Equation of Motion
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Graduate Derivative of Dirac Delta function
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Graduate Problem with finding the complementary solution of ODE
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Graduate A nonlinear difference equation
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Get Help with a Reducible DFQ | Beginner's Guide | Online Support
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Undergrad Can You Always Factor the Denominator in Partial Fraction Expansion?
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Undergrad 2nd Order Homogenous ODE (Two solutions?)
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MHB Wave Equation PDE: Help Solve Test Problem
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Graduate Transform of a piecewise continuous function
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Graduate Can Bessel's equation be solved using only Frobenius method?
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MHB Wave equation and weird notation
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Graduate Trying to get exact solution for a nonlinear DE
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Graduate How are they differentiating this ODE?
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Graduate Taking the inverse laplace of this?
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Graduate Coupled Nonlinear Differential Equations
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Undergrad Solution of two first order differential equation with one algebraic equation.
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Graduate Y1 = xe^(rx) and y2 = e^(rx): how y1 was discovered?
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Graduate Implicit Methods for Drag-Dependent Acceleration in Euler Integration
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Graduate Can Euler's Differential Equation Be Solved Using Initial Values?
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MHB Maths Mechanics (M1): Calculate Initial Velocity & Acceleration
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Undergrad More than N Solutions to Nth Order DE?
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Graduate Change of variables of differential equation
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Undergrad Fundamental- solving a second order differential equation
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Graduate Differential Equations 2 order and objectives
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Undergrad Dif.eq. with trigonometric functions involving y
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Graduate Solving non-linear system by linearization
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MHB Boundary Conditions of the Third Kind
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Graduate Help with difficult differential equation
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