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
Undergrad Mixed approximation vs. full approximation for a power series expansion
- FranzS
- · Replies 24 ·
Undergrad Correct Upper/Lower limits for continuation of solutions for ODE
- elias001
- · Replies 0 ·
Undergrad 2nd order ODE's, variation of parameters and the notorious constraint
- haushofer
- · Replies 5 ·
Undergrad A question about variables of integration
- Rick16
- · Replies 3 ·
Graduate About ellipticity and a proof that a system of PDEs is elliptic
- fluidistic
- · Replies 0 ·
Graduate Volterra equation of the second kind
- reterty
- · Replies 1 ·
High School An exact Paraxial equation derivation, 100% Cartesian
- difalcojr
- · Replies 6 ·
Undergrad Direction Fields and Isoclines
- Kakashi
- · Replies 1 ·
Graduate Should the boundary condition have to satisfy dimensional consistency?
- SaleemKU
- · Replies 6 ·
Undergrad Why Lagrange’s method of solving Pp + Qq=R works?
- PLAGUE
- · Replies 3 ·
Graduate Show positivity and boundedness of a non-linear system
- dgf
- · Replies 2 ·
Graduate The heat equation for a composite having contact resistance
- shreddinglicks
- · Replies 7 ·
Undergrad Visual Representation of Separation of Varables
- sonnichs
- · Replies 4 ·
Undergrad Solving a system of equations with 5 unknowns
- hmparticle9
- · Replies 10 ·
Undergrad Understanding Legendre differential equation
- chwala
- · Replies 2 ·
Undergrad Proving a basis is a basis for homogeneous linear differential equation with constant (complex) coefficients
- psie
- · Replies 2 ·
Graduate Searching for radial part solution of Klein-Gordon type equation
- art1915
- · Replies 1 ·
Undergrad 1D time dependent PDE - using orthogonal collocation
- mayzal
- · Replies 2 ·
Graduate Boundary conditions sufficient to ensure uniqueness of solution?
- fluidistic
- · Replies 4 ·
High School Mathematical equation of motion of a differential two-wheeled Sumo robot
- dis
- · Replies 1 ·
High School Deriving an asymmetric logistic growth model
- liquidFuzz
- · Replies 3 ·
Graduate Solving for a steady-state (passive cable equation)
- rall1959
- · Replies 4 ·
Undergrad Stuck on solving a non homogenous (linear) PDE
- fluidistic
- · Replies 36 ·
Undergrad Solving ODE with Laplace transform and Existence and Uniqueness Theorem
- lys04
- · Replies 19 ·
Graduate Symplectic split of Hamiltonian with complex term
- ematt
- · Replies 1 ·
Graduate Computing end-points using the Neumann condition
- hunt_mat
- · Replies 2 ·
Undergrad When is an ODE (numerically) reversible in time?
- Aidyan
- · Replies 4 ·
Undergrad Question about the general solution to Hooke's law
- dainceptionman_02
- · Replies 3 ·
Undergrad How to do Magnus expansion for time-dependent companion matrix?
- adf89812
- · Replies 7 ·
Graduate How to use the Newton-Raphson method while keeping the sum constant?
- K-Manu
- · Replies 2 ·
Graduate Request resources to understand Picard–Lindelöf for ODEs
- adf89812
- · Replies 6 ·
Undergrad Relevant Literature for Noisy Linear Dynamical Systems
- scjiang
- · Replies 1 ·
Undergrad Energy of moving Sine-Gordon breather
- TOAsh2004
- · Replies 2 ·
Undergrad Runge-Kutta 4 w/ some sugar on the top: How to do error approximation?
- bremenfallturm
- · Replies 65 ·
Undergrad Maxwell's equations PDE interdependence and solutions
- cianfa72
- · Replies 5 ·
Undergrad Understanding the given transformation - PDE
- chwala
- · Replies 5 ·
Undergrad A step in a proof of linear dependence of ODE solutions
- Hill
- · Replies 4 ·
High School Solving Kepler's 1st law as a function of time
- jebez
- · Replies 23 ·
Graduate Heat conduction equation in cylindrical coordinates
- shreddinglicks
- · Replies 2 ·
Undergrad Numerically how to approximate exponential decay in a discrete signal
- cppIStough
- · Replies 4 ·
Graduate Circuit ODE with multiple short voltage impulses
- ishan_ae
- · Replies 1 ·
Undergrad Number of solutions to the order of the equation
- Trying2Learn
- · Replies 2 ·
Undergrad Numerically solving a non-local PDE
- ergospherical
- · Replies 3 ·
Undergrad Green's function for 2-D Laplacian within square/rectangular boundary
- Swamp Thing
- · Replies 5 ·
Undergrad Toy problem to motivate the idea of advanced Green's functions
- Swamp Thing
- · Replies 0 ·
Undergrad How to Solve a Nonlinear PDE with Sinh Function?
- Adri
- · Replies 4 ·
Graduate Navier-Stokes solutions: Beltrami flow
- casparov
- · Replies 0 ·
Undergrad Partial Differential Equation solved using Products
- mathhabibi
- · Replies 2 ·
Undergrad Detailed solution of an envelopes example in a math book
- vgarg
- · Replies 5 ·
Undergrad General solution vs particular solution
- sdfsfasdfasf
- · Replies 52 ·
Graduate A question about an 'extremal' surface
- Antarres
- · Replies 7 ·
Graduate Why is the Heat equation solved with separation of variables but not with Fourier transformations?
- yaman
- · Replies 4 ·
Undergrad Uniform convergence of functions
- chwala
- · Replies 7 ·
Undergrad On vibrating string and differentiating infinite sum
- psie
- · Replies 7 ·
Undergrad Determining the dimension of a given PDE
- chwala
- · Replies 9 ·
Undergrad Navier-Stokes equation in a triangular coordinate system
- MasterOgon
- · Replies 3 ·
Undergrad Getting zeros and poles for Laplace transform
- bnich
- · Replies 0 ·
Undergrad V * grad(V) = grad(V^2/2) - rotor(omega)
- Rikyuri
- · Replies 6 ·
Graduate SDE valuation equation (stochastic calculus)
- cppIStough
- · Replies 1 ·
Insights Differential Equation Systems and Nature
- fresh_42
- · Replies 14 ·
Undergrad LIF Neuron Equation Solution for arbitrary time-dependent current (Neural Dynamics)
- gigorina
- · Replies 0 ·
Undergrad Determining linear indepedence/dependence of a set of functions
- chwala
- · Replies 11 ·
Undergrad Reduction of order in solving second order differential equations
- chwala
- · Replies 3 ·
Undergrad Heavyside’s operational calculus vs. transforms
- Frabjous
- · Replies 2 ·
Undergrad How to Evaluate This Stochastic Expectation Value?
- thatboi
- · Replies 0 ·
Undergrad Differential equation using power series method
- Graham87
- · Replies 8 ·
Undergrad Find the directional derivative of ##f## at the given point
- chwala
- · Replies 3 ·
Undergrad Determining equilibrium solutions to differential equations
- chwala
- · Replies 16 ·
Undergrad Cylindrical coordinates -Curvilinear
- chwala
- · Replies 1 ·
Undergrad The constant value on the given exact differential equation
- chwala
- · Replies 2 ·
Undergrad Determining directional Field for say ##\dfrac{dy}{dx}=y-x##
- chwala
- · Replies 5 ·
Graduate Solve PDE w/ Comsol 5.3: Numerical Solution & Time Evolution
- umby
- · Replies 5 ·
Graduate Discretisation of a PDE in Lagrangian coordinates
- hunt_mat
- · Replies 4 ·
High School Solving PDEs via FEM: A Gut Check of the Procedure
- Vanilla Gorilla
- · Replies 0 ·
Undergrad On a bijective Laplace transform
- psie
- · Replies 1 ·
Undergrad Modeling Asteroid Rotation Using Quaternions: Seeking Guidance on Init
- Codezero
- · Replies 3 ·
Undergrad On Laplace transform of derivative
- psie
- · Replies 17 ·
Graduate Legendre Polynomials -- Jackson Derivation
- Reverend Shabazz
- · Replies 6 ·
High School Incorporating boundary conditions in the Finite Element Method (FEM)
- Vanilla Gorilla
- · Replies 4 ·
Undergrad On sub and super solutions: Teschl and others
- psie
- · Replies 5 ·
Graduate Integrability of Systems of Differential Equations
- The Tortoise-Man
- · Replies 5 ·
Undergrad On the approximate solution obtained through Euler's method
- psie
- · Replies 1 ·
Undergrad On error estimates of approximate solutions
- psie
- · Replies 1 ·
Undergrad Feynmann's connection machine model
- picketpocket826
- · Replies 1 ·
Undergrad Verifying properties of Green's function
- psie
- · Replies 1 ·
Undergrad Question about solving linear first order non-homogeneous ODEs
- CGandC
- · Replies 3 ·
Undergrad Solving Differential Equation Using Reduction of Order
- giodude
- · Replies 2 ·
Graduate Stability analysis for numerical schemes of systems of PDEs
- hunt_mat
- · Replies 1 ·
Graduate The field equations of elasticity
- Trying2Learn
- · Replies 6 ·
Undergrad Heat Equation: Solve with Non-Homogeneous Boundary Conditions
- erobz
- · Replies 4 ·
Graduate Solving System of PDEs: Analytical Methods & Solutions
- satu
- · Replies 9 ·
Undergrad Solve Int. Eq.: Exponential Growth Diff. Eq.
- mcastillo356
- · Replies 7 ·
Undergrad "Rationale" for Homogeneous vs. Nonhomogeneous Differential Equations?
- Martyn Arthur
- · Replies 10 ·
Graduate Obtaining a variable value from a 5-th degree polynomial in the tangent form
- baby_1
- · Replies 4 ·
Graduate How to work around this equation giving infinities in the numerical calculation?
- FQVBSina_Jesse
- · Replies 4 ·
Undergrad Finding the time for the first shock for a quasilinear first order PDE
- BloonAinte
- · Replies 4 ·
Graduate Separation of variables is possible only in 11 coordinate systems?
- Trying2Learn
- · Replies 7 ·
Graduate Numerically solving a transport equation
- hunt_mat
- · Replies 3 ·