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 Solving the Differential Equation for Harmonic Oscillations
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Graduate NS Millennium Problem: Uniqueness & Solutions Explained
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Undergrad Why Are u and v Functions Zero in VOP for Homogeneous 2nd Order Equations?
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Graduate Movement with sine acceleration
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Undergrad Undetermined Coefficients - Duplication Question
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Graduate Logarithmic differential equation
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Graduate Obtain distance versus time from a speed vs distance plot.
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Undergrad How to Solve the Differential Equation (x^2 - 1)y' + 2xy = x?
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Graduate Partial Differential Equations at university
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Undergrad 4th Order Variation of Parameters
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Undergrad Is this a non linear integral equation ?
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Undergrad Why is general solution of homogeneous equation linear
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Graduate Looking for Nonlinear 2nd Order DE with Known Solution?
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Graduate Translating (Transforming) a recursive function
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Graduate How to Modelize Column Buckling with Coupled Differential Equations?
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Graduate Factorial question in a power series solution
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Graduate Question re: Schrodinger's equation
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Undergrad Finding Limits of F(x) as x Approaches 64 and 0
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Graduate Help: analytical of 2nd order PDE
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Graduate A challenging ODE question: find an integrating factor
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Graduate Bounded Second Order Differential Equations
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Undergrad What to use when reverse chain rule doesnt work?
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Graduate Should I Scale My Boundary Condition Values for Problem Where I Scaled Interior?
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Graduate ODE System with Variable Coefficients
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Graduate Solve using Undetermined Coefficients
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Undergrad Trouble creating differential equation from a flow line
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Graduate Numerical Integration for Cylindrical Domain with C2 Function and Point Data
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Undergrad Can't figure out how to solve a diffrential equation
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Graduate Exact solution of a 4th order DE
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Graduate Help in Mathematica code for solutions expansion of differential equations
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Undergrad Problem with an Undamped Forced Motion
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Graduate Using Partial Derivatives to check B-S Equation holds and find constants
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Undergrad I have a Wronskian Question?If the Wronskian W of f and g is t^2*e^t
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Undergrad How can I solve this first order DE with initial value y(0)=3^(1/2)/2?
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Undergrad New to Forum: Proving f(n+3) -3f(n+2) + 3f(n+1)-f(n) = 0
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Graduate Solve Non-Linear DEs w/ Many Consts Using Mathematica
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Graduate What is the Correct Way to Take the Inverse Laplace Transform?
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Graduate Solving 2nd Order ODE: du/ds & k^2
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Graduate Solutions to Cubic equation that dont diverge when reduced to linear equation
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Undergrad Differential- integral factor by inspection
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Graduate Is the Relationship Between Natural Log and Partial Derivatives in PDE Valid?
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Graduate General equation for change of variable in a differential equation
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Undergrad Non-homogeneous 2nd degree differentials, simplification issues
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Undergrad Matrix equation: Ax=b; can A coefficients be negative? Or could this be error?
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Undergrad First order differential equation
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Undergrad How much math is needed before taking ODE?
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Graduate Classification of fixed points of N-dimensional linear dynamical system?
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Undergrad Two general questions about differential equations.
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Undergrad How Does One Compute the Derivative of a Convex Quadratic Function?
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Graduate Solving a Simple PDE: Need Assistance!
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Graduate Matrix equation, solving for x(t)
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Graduate Solving Coupled PDEs: A Comprehensive Guide
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Graduate How Does the Differential df Relate to Function Approximation?
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Undergrad Family of Curves w/ Slope=1 at (1,1) - Can You Answer?
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Graduate Are We Missing Solutions in First Order Non-linear PDEs?
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Undergrad Graph and Differential equations for hyperbolas
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Undergrad Preparing for Intro PDEs: What Topics from Calc III Are Essential?
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Graduate Integrating Swallowtail Catastrophe Theory & Population Dynamic Equation
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High School Importance of adding the constant of integration.
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Graduate Reproducing Optimal Cost in Linear Quadratic Regulator Problem
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Graduate Where Did the R's Come From in the Transport Phenomenon Problem?
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Undergrad Solving Separable Equations - Get Help Now
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Graduate Intuitively d'Alembert's solution to 1D wave equation
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Undergrad Help with plotting vector fields
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Graduate Laplace's Equation,Boundary Conditions Etc.
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Graduate Why Is y''(a) Determined by y(a) and y'(a) in a Differential Equation?
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Graduate Definition of variable coefficients in linear differential equations
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Undergrad Numerical Integration of Equation
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Undergrad Question about independance of functions and wronskian
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Graduate Writing PDEs as differential equations on Hilbert space
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Graduate 1st order PDE, quadratic in derivatives, two variables analytic solution?
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Graduate Laplace Transform: Learn Eberhard Zeidler's Definition
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Undergrad Explinations needed, second degree linear equations with a constant
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Undergrad About the exponential function of series
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Undergrad Differential Equation Solution
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Graduate 3D Schrödinger Equation for a magnetic vector potential in cylinder coordinates
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Graduate What do you call a more general boundary condition?
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Undergrad Reduction of order from 2nd to 1st
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Undergrad Problem with differential equation
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Graduate Analysing Lotka and Volterra equation (ODE)
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Graduate Can substitution be used to solve this homogeneous DE?
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Graduate How Do You Solve a PDE Model Similar to the Heat Equation?
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Undergrad Good Theory-Intensive Introductory Diff Eq Textbook
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Graduate Desperate trying to solve a simple Sturm-Liouville equation
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Undergrad How Can I Prove y'(t) = x(t) * h'(t) and y'(t) = x'(t) * h(t)?
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Graduate NonHomogeneous Second Order using Undetermined Coefficients
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Graduate Solving an equation that resembles exact equation
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Graduate Damped Harmonic Oscillator Equation: Sum of Solutions = Another Solution?
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Undergrad Engineering Applications of Bessel Functions
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Graduate Why doesn't this diff eq. have two solutions?
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Undergrad What are the rules for initial value problems?
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Graduate Can PDEs be solved using ODEs in quantum mechanics?
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Undergrad How to Solve cos(x+y)dy=dx Using Trigonometric Identities?
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Graduate Can you provide me with the formula for the 3D Fourier transform of 1/r?
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Undergrad Is this differential system of equations *coupled*?
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Undergrad Can someone name this method testing DE's to be homogeneous
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Undergrad Clarification regarding the proper use of constant C.
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Undergrad Solving First-Order Linear Equation with Reversed Roles
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Undergrad How to integrate K/[(y^2 + K)^3/2] dy
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Graduate 2nd basis function for 2nd order ODE
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