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 Derivation of Solution to nonlinear 2nd Order ODE
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Undergrad Integration by subsitution (give constant value), why?
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Graduate Multidimensional Fourier transform oddity
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Graduate Sobolev Spaces different definitions
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Graduate Differential Equations : Integrating factors
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Graduate Finding a solution to this equation using Frobenius method
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Graduate Probelm getting started with Fouriertransforms
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Graduate Bessel Functions and Shifted Integral Limits: How Are They Related?
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Graduate FT to solve 2nd order ODE; only one solution
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High School How is this simplification possible?
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Graduate A fundamental solution and its derivatives
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Graduate How to solve this second-order nonlinear ordinary differential equation?
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Graduate Inverse Laplace Transform Equation
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Graduate Solving Equation: ln(y)(x^4 - y^4) + ln(x)(y^4 - x^4) + (y^2 - x^2)^2 = 0
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Undergrad How to Solve Exact Differential Equations with Discontinuous Functions?
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Undergrad Solving For t in A Sin(Bt) - Ct + D = 0
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Graduate Forgotten my maths Simple 1D ODE, spherical coordinates
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Graduate Principle of superposition for a particular case of liner differential equation.
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Graduate Numerical method on heat diffusion problem
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Undergrad Fourier coefficients in a discrete curve
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Graduate Special case of nonlinear first order ordinary differential equation.
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Graduate Why Can't These Equations Be Solved Analytically?
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Graduate Integrating factor for first order linear equations uniqueness theorem
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Graduate Relationship between two solutions
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Graduate Verifying Differential Equations Solutions: ODEs on Intervals
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Graduate How Can I Bridge the Gap Between Undergraduate and Graduate Level PDEs?
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Graduate Solving the Schrodinger Eq: Time Dependency & System Dynamics
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Graduate Proof that Bessel functions tend to zero when x approaches infinity
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Graduate Taylor series and the forward finite difference method
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Graduate Existence and uniqueness of PDEs
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Graduate First order nonlinear differential equation Help needed.
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Graduate Solving a nonlinear system with parameters
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Graduate How do I Find the Dispersion Relation for a PDE?
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Graduate Second order, nonlinear differential equation help
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Graduate Trouble solving a differential equation
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Graduate Cauchy problem, method of characteristics
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Graduate Model involving SOD of two variables
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Graduate Differential Equations : Solution Curves
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Graduate Change of Variables: Transform DeltaT/DeltaT with Chain Rule
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Graduate Homotopy Analysis Method (or Homotopy Perturbation Method)?
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Graduate Partial differential equations , rearranging and spotting
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Graduate Ordinary points, regular singular points and irregular singular points
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Graduate Second derivative - wolfram giving one answer, professor giving another
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Graduate Partial derivatives and transformations of variables: A step-by-step guide.
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Graduate Function composition in finite differences
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Undergrad Separable equation constant generality.
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Undergrad Struggling with This Differential Equation?
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Graduate Differential equations: y’= sin(cx) sin(yx), y(0)=1
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Graduate How can you derive the regularization of a product with a delta function?
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Graduate Assumed solution for the Laplace EQUATION?
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Undergrad Equilibrium solutions in mathematical modelling
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Graduate Understanding Analytic Functions and Convergence
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Undergrad Understanding Logarithmic Identities in Differential Equations
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Graduate How to Prove a Verification Theorem for an Optimal Control Problem?
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Graduate What is the significance of the constant k in the brachistochrone problem?
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Undergrad Question about laplace transform limits
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Graduate Physical significance of dot and cross products in electrodynamics
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Undergrad Solving d/dx from dy/dx in Maths
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Graduate Differential eq with square root numerical
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Graduate Need help for Ito Isometry proof
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Graduate Solve Cauchy Problem for PDE: exp(-x)dz/dx+{y^2}dz/dy=exp(x)yz
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Undergrad How to calculate elliptic integrals in MATHCAD?
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Undergrad What is needed from calc III for PDEs?
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Graduate Non-linear Schrodinger Equation (Differential Equation)
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Graduate Why Does This IVP Have a Unique Solution?
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Graduate Initial Condition Problems with Heat Equation in Mathematica
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Graduate How to solve ODE for independent function
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Graduate How many B.C. are necessary for first order PDE set?
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Graduate Periodic functions (or similar)
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Graduate Solving a PDE using multiple transforms
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Undergrad Understanding the Chain Rule Proof: Explained with Examples
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Graduate Consider the second-order linear homogeneous of differential equation.
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Undergrad Second-order non-homogeneous linear differential equation
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Graduate Is there more than one Crank-Nicolson scheme?
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Graduate Fourth order Runge–Kutta in C# - two differential equations
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Undergrad Matching orientations of 2-d arrays of values - using fft?
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Undergrad Quick question about Differential Equations.
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Graduate Solving this type of recurrence equation
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Graduate Finding Similarity Solutions for Boundary Value Problems
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Graduate Using BVP4C for overdetermined system
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Undergrad Creating a RL/RC/RLC Circuit model
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Graduate Lane-Emden Equation for non conventional EoS.
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Graduate Help with initial value problem(IVP)
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Graduate Normal derivative of Green's function on a disk.
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Undergrad Calculating the gradient of a surface
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Graduate Where Does Homoclinic Bifurcation Occur in a 2-D Nonlinear Dynamics System?
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Undergrad Limit properties laplace transform
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Graduate Question about orthogonal functions
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Graduate Effect of Gravity on Wave Propagation
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Graduate Second Solution to Bessel's Function of order zero
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Graduate Example of stochastic differential equations
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Graduate Simple Sturm-Liouville system resembling Associated-Legendre equation?
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Graduate Characterisitics of a Parabolic PDE
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Undergrad Laplace Transforms: Solving exp(-as)*(1/s+5) w/ S-Shifting
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Undergrad It might simple to you, but i'm stuck.
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Undergrad Power series method and various techniques
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Graduate Dear Fellows If I am on wrong part of forum then sory for that
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Graduate How Can I Solve This PDE Using Characteristics?
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Undergrad How to Stop Integration in ode45 When y<=0 is Reached?
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Graduate Optimization problem using exact Hessian
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