Join in expert discussion on differential equation topics like ODE and PDE. Differential equations are an equation involving derivatives of a function or functions.
Threads
Graduate No Time Term in Elliptic PDEs? Confirm Here!
- charlies1902
- · Replies 1 ·
Graduate Second order differential equation
- engnrshyckh
- · Replies 9 ·
Is the Laplace Transform Calculation Correct for a Given Function?
- ineedhelpnow
- · Replies 2 ·
How do I find the Laplace Transform for U3(t)(t-3)^5/2?
- ineedhelpnow
- · Replies 4 ·
Laplace transform homework check
- ineedhelpnow
- · Replies 2 ·
Graduate Reducing the ODE yy''+2y'²+xy'+½y=0
- member 428835
- · Replies 11 ·
How to solve an ODE in powers of x?
- ineedhelpnow
- · Replies 2 ·
Laplace equation and Median Value Property
- Julio1
- · Replies 1 ·
Graduate Solving Boundary Conditions in 2D Axisymmetrical Model
- Giorgia
- · Replies 1 ·
M. Kyncl's Numerical Solution of 3D Compressible Flow: Master's Thesis 2011
- angy
- · Replies 3 ·
Graduate Find General Solution for Inhomogeneous 2nd ODE
- Tzabcan
- · Replies 3 ·
Graduate Time dependent three dimensional dirac delta function
- chiraganand
- · Replies 2 ·
Graduate Math expression for a developing waveform?
- Sturk200
- · Replies 1 ·
Graduate Ordinary differential equations. Series method.
- LagrangeEuler
- · Replies 5 ·
Proving Laplace Equation in $\Omega_{(a,b)}$
- Julio1
- · Replies 5 ·
Graduate What is the solution for the attached equation?
- eahaidar
- · Replies 4 ·
Graduate Solve coupled nonlinear differential equations
- eahaidar
- · Replies 13 ·
Graduate What would the laplace inverse of a laplace be?
- Jim wah
- · Replies 2 ·
Graduate Determine coefficients of a differential equation
- jackonelli
- · Replies 1 ·
How Can You Reduce This PDE to Its Canonical Form?
- Julio1
- · Replies 5 ·
Undergrad When do we need the vector wave equation instead of scalar?
- wasi-uz-zaman
- · Replies 4 ·
Graduate Problem integrating a double integral
- hoomanya
- · Replies 5 ·
Graduate How would I take the laplace transform of f(t)= te^tsin^2(t)?
- Jim wah
- · Replies 6 ·
Undergrad What did I do wrong in solving this basic differential equation?
- Tzabcan
- · Replies 2 ·
Express 3sin(3x)-4cos(3x) in the form Rcos(3x+\alpha)
- ThomsonKevin
- · Replies 1 ·
Graduate Power series solution, differential equation question
- Honey Bee
- · Replies 2 ·
Solving 2nd order differential equation numerically
- tejsa1
- · Replies 9 ·
Graduate RK4 adaptive step doubling damping solution component
- Tabatta
- · Replies 2 ·
Graduate Nonlinear heat equation -- Handling the conductivity
- maka89
- · Replies 19 ·
Graduate Relation between energy conservation and numerical stability
- hoomanya
- · Replies 2 ·
Linear differential equations with constants coefficients
- mathmari
- · Replies 1 ·
Graduate Is the Dirac Delta Function Squared Equal to Itself?
- jk22
- · Replies 2 ·
Graduate Approximate solution of differential equation
- zhanhai
- · Replies 3 ·
Graduate Why does this "clearly" solve the heat equation?
- jaskamiin
- · Replies 5 ·
Graduate Solving α(uu_x)_x = u_t for initial value problems
- maka89
- · Replies 2 ·
Graduate Estimating the Parameter 'a' from ODE System
- Bita_La
- · Replies 2 ·
How do we choose the number of subintervals?
- evinda
- · Replies 3 ·
Order of Accuracy for Finite Difference Method Backward Euler
- evinda
- · Replies 1 ·
Graduate Can Klein-Gordon Equation Solutions Have Compact Support?
- naima
- · Replies 3 ·
Graduate Is there a way to verify the correctness of decoupled linear ODE solutions?
- SteliosVas
- · Replies 3 ·
Calculating Average Acceleration for Changing Velocity and Direction
- ognik
- · Replies 4 ·
Undergrad Fundamental matrix vs Wronskian
- summerha
- · Replies 2 ·
Undergrad Why can't we integrate both sides of a coupled system of differential equations?
- transmini
- · Replies 8 ·
Graduate Can Euler Forward or 4th Order Runge-Kutta Methods Approximate Systems of ODEs?
- worryingchem
- · Replies 2 ·
Solving a PDE system with coupled equations and initial conditions
- arrow27
- · Replies 5 ·
Graduate Green's functions for translationally invariant systems
- "Don't panic!"
- · Replies 13 ·
Linear differential equation of first order in EXP(C)
- mathmari
- · Replies 5 ·
Graduate How do you work out wave envelopes and asymmetries?
- tim9000
- · Replies 1 ·
Graduate Bellman Equation, Dynamic Programming, state vs control
- onthetopo
- · Replies 5 ·
Graduate How do you determine if an ODE is well-posed?
- member 428835
- · Replies 4 ·
Undergrad Linear vs nonlinear diff equation II
- Calpalned
- · Replies 5 ·
Undergrad Find Particular Solution for x = 120 cos 6t
- Abdul.119
- · Replies 2 ·
Undergrad Determining the value of a constant
- Calpalned
- · Replies 3 ·
High School Linear vs nonlinear diff equation
- Calpalned
- · Replies 2 ·
Existence of solution of a linear differential equation
- mathmari
- · Replies 1 ·
Graduate Finite differencing on non-uniform grids
- hunt_mat
- · Replies 2 ·
Learning Lagrange Mesh Method for 1D Schrödinger Eqtn.
- ognik
- · Replies 2 ·
Graduate Finite difference method to solve first-order, multivariable
- idraftscience
- · Replies 3 ·
Solving a Boundary Value Problem: Non-Uniform vs. Uniform Partitioning
- evinda
- · Replies 1 ·
Undergrad Solving ODEs with Heun's Method: A Question
- yugeci
- · Replies 1 ·
Graduate Matrix-free iteration methods and implicit ODE solvers
- percolator
- · Replies 1 ·
Partial Differntial problem Cauchy
- arrow27
- · Replies 2 ·
Reduction of linear or non linear equation to first order.problem
- danny12345
- · Replies 1 ·
Solving dx/dy = √(1+x²)/(xy³) with initial condition (0,-1)
- hornekat
- · Replies 1 ·
Graduate How Does Changing the Right-Hand Side of the Matrix Affect the ODE Solution?
- Bruno Tolentino
- · Replies 1 ·
How to Make $y(x^3e^{xy}-y) \, dx+x(xy+x^3e^{xy}) \, dy=0$ Exact?
- danny12345
- · Replies 1 ·
Solve Periodic Problem: Find Function $u \in C^2(\mathbb{R})$
- evinda
- · Replies 2 ·
Undergrad Using boundary conditions to find integration constants
- gracy
- · Replies 1 ·
Graduate Why Does Increasing Final Run Time Cause Divergence in Finite Differencing?
- member 428835
- · Replies 96 ·
Graduate Two-phase capillary-driven oil-water flow in porous media
- maka89
- · Replies 1 ·
Graduate Exact Linear Second-Order Equations
- Bruno Tolentino
- · Replies 1 ·
Graduate System of Implicit Non-Linear First Order ODEs
- CSteiner
- · Replies 5 ·
Cauchy problem with dx/dr = y and initial condition x(0,s) = s
- Julio1
- · Replies 1 ·
Graduate Reduction of 2nd order PDE to a first order equations system
- Auteng
- · Replies 2 ·
Grothendieck Problem: Solving $(*)$ Algebraically
- mathmari
- · Replies 1 ·
Undergrad Very basic Q about solns to y" = y
- kostoglotov
- · Replies 2 ·
Graduate Solve Differential Equation with Euler's Method
- youcef
- · Replies 15 ·
How is Rodrigue's Formula Derived?
- danny12345
- · Replies 2 ·
Graduate How Do Initial Conditions Affect Damping in a Mass-Spring-Damper System?
- tomizzo
- · Replies 1 ·
Graduate X''(t) required for reciprocal of X'(t) to be constant
- NotASmurf
- · Replies 4 ·
General solution to y" + 4y' + 3y = 4^(-t) using undetermined coefficients
- rayne1
- · Replies 6 ·
Integrating Factor: Solve x ln(x) dy/dx = xe^x
- tiaborrego
- · Replies 7 ·
Graduate Sturm-Liouville operator, operating on what?
- HeisenbergsDog
- · Replies 13 ·
Graduate Q about Poisson eqn w/ Neumann boundary conditions as in Jackson
- hideelo
- · Replies 5 ·
Graduate System of ODE - comparison with paper
- dimandr
- · Replies 3 ·
Undergrad Why Is a Particular Solution Necessary in Differential Equations?
- LumenPlacidum
- · Replies 4 ·
Classifying Equation 1: Linear, Semilinear or Quasilinear?
- Julio1
- · Replies 8 ·
Solving DE using Frobenius series method
- ssh
- · Replies 4 ·
Graduate Is pertubation a linear operation?
- rkrishnasanka
- · Replies 3 ·
Graduate Physical interpretation for system of ODE
- Bruno Tolentino
- · Replies 2 ·
Graduate Does a Submanifold Correspond to the Center Manifold?
- jollage
- · Replies 5 ·
Putting it all together: The Deuteron
- ognik
- · Replies 1 ·
Graduate Can series solutions solve any nonlinear differential equation?
- Pejman
- · Replies 3 ·
Q(x)=0 special case self-adjoint eqtns
- ognik
- · Replies 4 ·
Undergrad Violating intial conditions: ODEs
- CharlesNguyen
- · Replies 2 ·
Why is there a * in the 2nd integral for self-adjoint ODEs?
- ognik
- · Replies 8 ·
Undergrad What is the relationship between eigenvalues and eigenvectors in 3x3 matrices?
- hellomrrobot
- · Replies 4 ·
Bernoulli Equation Checking the solution
- cbarker1
- · Replies 1 ·
What is the Initial Population of Bacteria in a Culture?
- rayne1
- · Replies 4 ·
Undergrad If Dy/Dx=5, Dr/D(theta)= 18, and y=40, find theta.
- TDavenport
- · Replies 4 ·