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.
Graduate Riemann Hypothesis for dynamical systems
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Undergrad For which PDEs is the solution in the form of F(x)*G(t)?
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Undergrad Can I split up the left hand side of an ODE?
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MHB Solving the IVP for x=c_1\cos{t}+c_2\sin{t}: Solution to DE & Initial Conditions
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MHB What is the Poisson Integral Formula for a Two-Dimensional Plate with a Hole?
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MHB Making up a differential equation with no real solutions
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MHB Verifying solution to first order differential equation
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Graduate Solving PDE Using Method of Separation of Variables: Complete Guide
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Undergrad How to call a built function in mathematica
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MHB Infinite domain to finite plate by a change of variables
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Graduate Need help solving PDE, numerically which contains some transformations
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MHB Is It Linear in the Indicated Dependent Variable?
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Graduate Solving ODE for $\sigma$: Transformation and Manipulation?
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Graduate Solving Differential Equations: A Comprehensive Guide
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Undergrad Construct DE w/ Soln y(t) = e^t cos(3t)
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Undergrad Equilibrium Solutions - Understand & Graphically Visualize
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Undergrad Substituting w=y' in the Differential Equation
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Undergrad How to Use FindRoot for Determinant with Fixed Values?
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Graduate Need help with a complex differential equation
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Undergrad How do I find the complete solution for x'=(2, 3, -1, -2)x+(e^t, t)?
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MHB Plotting runge kutta 4 stability region
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Graduate Simplifying an integral expression involving Airy functions
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Undergrad Why Does My Differential Equation Solution Differ by a Sign?
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Graduate Is there a quantitative measure for the nonlinearity of PDEs?
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Graduate Laplace Transform Question
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MHB Thingsto Do's question at Yahoo Answers regarding a first order homogeneous IVP
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MHB Unraveling the Mystery: Solving for Real Values in a Complex Equation
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Undergrad Similarity between exact equations and potential functions
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Graduate Is the Airy Function Normalized?
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High School Is an equilibrium solution always zero in differential equations?
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MHB Min of an Integral lagrange multipliers for E-L
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MHB Solving xu_t + uu_x = 0: Need Help with Change of Variables
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Graduate Convert differential equation to finite difference equation
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MHB Relation between Hermite and associated Laguerre
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MHB Euler-Lagrange equation first integral question
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Graduate How to Derive the General Solution for a Differential System with Complex Roots?
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Graduate Finite Fourier Transform on a 3d wave
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MHB Integrating factor in Exact Equations
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MHB Can any twice-differentiable function satisfy these conditions?
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MHB Coupled ODEs from Euler Lagrange eq
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Graduate Differential Equation Containing Natural Log of Negative e
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Graduate Why do we take the derivative of g(x) when using the method of
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MHB Inflection Point of the Threshold Equation
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Graduate Finding Non-trivial solutions to ODE in Mathematica
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Undergrad Can anyone help me? I have no idea .
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Undergrad Did my professor do this laplace-inverse wrong?
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Graduate Sigularity problem in NDSolve in mathematica
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Graduate General Solution for a 2x2 Matrix Differential Equation
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Graduate General Solution for a 2x2 Matrix with Complex Eigenvalues
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MHB How to Solve This Homogeneous Differential Equation?
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Graduate Linearization of Ricatti equations
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MHB Determine whether equation is exact.
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MHB Where can I find info on the partial derivative of elastic energy wrt position?
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Undergrad How does dy/dt=ry end up with the constant multiple on the right?
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MHB A question regarding initial values and verifying solutions
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MHB Where Do Theorem 2.4.2 Conditions Apply for \(y'=\frac{t-y}{2t+5y}\)?
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MHB Understand Truncation Order 2: Conditions & Examples
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MHB 2 questions regarding initial values and verifying solutions
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MHB Motion of Falling Body w/ Varying Drag: Farah's Q on Yahoo Answers
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MHB Skydiver/Physics Diff.Eq. Problem
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MHB Proofs regarding uniform circular motion in vectors
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Graduate Questions about derivation of equation
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MHB Determining if equation is linear in indicated dependent variable
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MHB In the simplest qualitative terms what is a differential equation?
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Graduate 2nd order ODE's odd and even functions
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MHB How Much Does It Cost to Repay a $8000 Car Loan with 10% Interest in 3 Years?
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Undergrad How did they isolate y in this seperable equation?
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Undergrad Solving differential equations with different differential notation?
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Graduate Bessel vs Modified Bessel Eqn solve PDE
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Graduate Exact Differential Equations of Order n?
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MHB Finding Salt Concentration in a Tank with Limited Capacity
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MHB Modeling with a First Order Equation
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MHB Is This Initial Value Problem Solved Correctly?
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MHB Why can y(x) be rewritten as just y?
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Undergrad Very basic question on derivative notation
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MHB Verifying a Solution to an ODE: Differential Equations HW Help!
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Graduate PDE - Boundary value problem found in QM
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Undergrad Is is possible to learn second-order DE before first-order?
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Graduate Why Is \(u(r,\theta,\phi)\) Treated as a Function of \(r\) Here?
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Undergrad Solving Differential Equations: Understanding the Steps
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MHB Is This Equation Known as the Korteweg-de Vries Equation?
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MHB Nathan Curtis' Question at Yahoo Answers regarding Differential Equations
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Undergrad Please tell me what I did wrong when solving this DE
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Undergrad How to Solve Reducible Exact Differential Equations: Methods Explained
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Graduate What is the solution to the ODE with p=1/3, f(x)=-3/2x, and g(x)=2/3?
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Graduate Nonlinear coupled differential equation system - kinetics
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Graduate Separable Differential Equations
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Graduate Domain of Sturm-Liouville operators
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Graduate Doubts on the boundary conditions of PDE
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Graduate Locally bounded linear differential operators
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MHB Fallin' staR's question at Yahoo Answers regarding kinematics
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MHB Can you spot the error in my substitution method for solving this DE?
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Graduate Inverse Laplace Transform of a product of exponential functions
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Graduate Eigenvalue problem and initial-value problem?
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Undergrad Does Laplace and Poisson's equation have to be for static condition?
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Undergrad Differential Equations for Physics
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MHB No-One's question at Yahoo Answers regarding Newton's Law of Cooling
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Graduate How Can Numerical Stability Be Achieved in Unsteady Laminar Flow Equations?
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MHB Newton Rhapson Failure Analysis
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Graduate Wave speed and d'Alembert's formula
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