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 Q: pde heat eqn u(x,t) history effect \int^t_0 d^2u/dx^2
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Graduate How Do I Solve This Differential Equation for a Contagious Disease?
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Graduate Coupled first order differential equations
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Undergrad Solving Concentration Problem in Tank
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Graduate How does the line integral method solve ODEs?
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High School Mixing Solutions: Problems & Solutions Explained
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Undergrad Auxiliary Equation with Imaginary Roots
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Graduate Why Doesn't Reduction Order Work for This Differential Equation?
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Undergrad Application of partial derivatives
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Undergrad Understanding the Relationship between dv/dt and vdv/dx in Calculus
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Graduate A necessary condition for uniqueness
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Graduate What Are the Solutions for These Two Differential Equations?
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Undergrad Equilibrium Solutions in Natural Decay and Growth Equations
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Graduate Laplace Operator: Spherical Coordinates
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Graduate Solving Chemical Reactions in Greenburg's Advanced Eng. Mathematics #8
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Undergrad Simple but i cant get it? Log derivative
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Graduate Uniqueness of Solutions for Laplace Initial Value Problems
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Graduate Dimension of Soln Space of Heat Equation: Is It Infinite?
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Undergrad I need a little help attacking a problem
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Undergrad Understanding Derivatives of Exponential Functions
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Undergrad What Is a Bifurcation Diagram and How Do You Create One?
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Undergrad What is the method for checking stability of finite differencing schemes?
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High School What Does Ordinary Mean in Ordinary Differential Equations?
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Graduate Resonance pde wave equation u(\phi,t) involving lagrange polynomials
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Undergrad Modern trends in the numerical solution of differential equations
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Graduate Solving Laplace Transform of sin[3t] ( h[t - pi/2] - h[t] )
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Undergrad Understanding the Differential Equation y'=-Ae^{-t} and Its Solution - A Guide
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Undergrad Is my charastic equation for y''-4y' +5y =0 correct?
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Undergrad Find the Flight Time of a Dart Shot from 1.5m Above Ground | Derivative Question
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Graduate How can I solve a system of second order ODE's numerically?
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Undergrad Piecewise definition for a function
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Undergrad Method of undetermined coefficent
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Undergrad Homogeneous and particular solution
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Undergrad Elementary differential equations
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Undergrad Simple ODE, but how to approach?
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Graduate What does the geodesic equation for a surface involve?
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Graduate Study Sturm-Liouville Eigenvalue Problems
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Graduate How do I set up difference equations for intersecting ovals?
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Graduate How to Model a Two-Mass Pendulum System Using ODEs?
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Undergrad What should be the particular solution?
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Graduate How Do You Determine the Region of Absolute Stability for the Theta Method?
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Graduate Differential Equation: dv/dx Solution
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Undergrad How do you solve for x when using the chain rule and functions with variables?
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Graduate Complex exponential (properties)
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Undergrad Solving Linear First Order D.E. y' - y*tan[x] = 2sin[x]
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Undergrad Modeling Bacterial Growth with Differential Equations
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Graduate How Do You Solve the Nonlinear System with Sensitive Initial Conditions?
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Undergrad Understanding Fourier Series: Conceptual Explanation and Calculation Tips
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Graduate Frobenius Method: Finding Solutions for x^2*y"-x*y'+(x^2+1)y=0
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Undergrad Help Needed: Differentiation in Maths - Find F(x) & t(x)
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Undergrad Xn+1 = Xn(2 - NXn) can be used to find the reciprocal
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Undergrad Integral of (2x+5) (x^2-3) / x - Moshe
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Undergrad Theorem of implicit functions help
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Graduate Solution of Initial Value Problems, Laplace Transform
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Graduate What the hell is Green's third identity talking about?
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Undergrad Understanding the concept of laplace transformations
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Undergrad Need help compute the laplace transform
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Graduate Total derivative -> partial derivative
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Undergrad Transforming a 1st Order PDE into a 2nd Order PDE: A Simple Example
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Graduate Is the solution to Laplace's equation harmonic over a path in space
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Graduate Differential Equations L^(-1) { (3s-4) / (s(s-4)) }
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Graduate How to Determine Stability Intervals and Periodicity in Differential Equations?
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Undergrad Solving Laplace Transform y''-6y'+13y=0 | Help Needed
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Undergrad Nonhomogeneous: Undetermined coefficients
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Graduate Revisiting Pendulum Dynamics - Tap to Re-oscillate
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Undergrad Practical application of partial,simple differential equation
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Undergrad Dirac Delta Function: Understanding Laplace & Inverse Laplace Properties
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Graduate Can Constant Velocity be Solved with Separable ODEs?
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Graduate Hermitian Operator: Is d^2/dx^2 Proven?
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Graduate How is the Step Change in Temperature Equation Derived?
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Undergrad What are the steps for finding u1 and u2 in the variation of parameters method?
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Graduate Periodic Wave Solutions of the Wave Equation
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Graduate How do I use RungeKutta 4/shooting method for this problem?
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Graduate How can I combine the solutions for u(t) and y(t) to find the solution for y(t)?
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Undergrad How to Determine a Differential Equation from a Given Solution?
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Graduate How to Solve the Third-Order Linear Homogeneous Differential Equation?
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Graduate Solving Diff Eq Homework: Population Problem
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Graduate Solving Difficult Wave Function Problems
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Undergrad Cam -follower displacement as a time function
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High School Substitution Methods for 1st Order Diff. Eqns - Help for Beginners
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Undergrad Need help finding solutions to Diff eq
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Graduate Finding Green's Function for Half Space Neumann Problem
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Graduate Parabolic Problems: Weak Formulation & Solution Verification
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Graduate Mixed Derivative in Differential Equations: Analytical and Numerical Solutions
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Undergrad How to get a particular solution.
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Undergrad What identity should I substitute for the integral of sin^4(x)*cos^4(x)?
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Graduate How to Motivate the Integrating Factor Strategy for \( \mu(y) \)?
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Graduate How to solve these Differential Equations?
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Graduate Problem in Newtonian gravity- 2nd order, integration problems
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Undergrad How Can I Solve This Second-Order Differential Equation?
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Undergrad ?Test for Exactness of Separable Differential Equations
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Undergrad Dfq Prob, using Logisitc Equation
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Undergrad Second-Order Homogeneous Linear Equation
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Undergrad How prove the maximum of 2 functions
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Undergrad Calculating the Age of a Fossil Using Radioactive Decay: A Quick Guide
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Undergrad How to find acceleration or displacement with respect to time?
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Graduate Proving a Solution of \[u_{tt} - c^2 u_{xx} = 0\]
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Undergrad Solve Differential Eq.: dy/dx= 1/(xy+x^2y^3)
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Graduate How do I prove the homogeneity of a function of degree n?
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Graduate Dynamical systems proof - nonwandering set
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