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
What Are Some Suggestions for Checking an Answer and Identifying Mistakes?
- kingboy
- · Replies 5 ·
Graduate Solving the Non-Linear ODE: x+ x^2*y+x^3*y^2
- scizj
- · Replies 4 ·
Undergrad Solving Inverse Laplace Transform: Understanding L^{-1}(8)
- manderz2112
- · Replies 3 ·
Graduate Solving Romeo & Juliet's Love Dynamics: 1st Order Linear System of DEs
- Mmula
- · Replies 5 ·
Graduate Is the Blow Up Time of an ODE with Lipschitz Condition Continuous?
- csco
- · Replies 5 ·
Graduate Extremely difficult System of Differentil Equations
- Noone1982
- · Replies 20 ·
High School Usual convention for proving differential equations
- Schreiberdk
- · Replies 4 ·
Graduate Understanding Eigenvalue Problems
- Xyius
- · Replies 6 ·
Graduate Power series solutions for ODEs. When are there how many of them?
- Jerbearrrrrr
- · Replies 1 ·
Graduate Newtonian Central Force System
- itev07
- · Replies 1 ·
Undergrad Test for Exactness, linearly dependent?
- ombudsmansect
- · Replies 5 ·
Undergrad Differentiating complex numbers?
- Shaybay92
- · Replies 1 ·
Graduate Solving Laplace's Equation with Exponential Function
- lavinia
- · Replies 2 ·
Undergrad Why Does the Wronskian of Two Functions Yield Zero?
- blizzard750
- · Replies 1 ·
Graduate Using chain rule to derive the path equation
- helpinghand
- · Replies 1 ·
Undergrad Where can I find proofs for d. eq solutions?
- mike_
- · Replies 7 ·
Graduate How to solve this 2nd order nonlinear differential equation
- tornado681
- · Replies 22 ·
Graduate Solve Modeling Higher-Order Diff Eqn: Free Undamped Motion w/ Spring
- Matthewmccoy6
- · Replies 2 ·
Graduate Could anyone help me out for this Boundary Value Problem?
- whatwhat1127
- · Replies 1 ·
Graduate Finding Critical Points of y1'=y2 and y2'=-kcos(y1)
- helpinghand
- · Replies 1 ·
Graduate Shallow Water Equations and Initial Conditions
- TheFerruccio
- · Replies 1 ·
Undergrad Undamped force oscillation formulas
- gmmstr827
- · Replies 2 ·
Graduate What are the three similar cases for examining Laplace's Equation boundaries?
- LHS
- · Replies 10 ·
Graduate How Do You Solve a Second Order ODE Using Reduction of Order?
- praecox
- · Replies 3 ·
Undergrad Finding aplitude of free undamped motion
- Black Armadillo
- · Replies 3 ·
Graduate System ODE, nonconstant but periodic coefficients
- Marin
- · Replies 9 ·
Graduate How do I minimize a function with a constraint using Lagrange-Euler method?
- fery
- · Replies 6 ·
Undergrad Solving D.eq. with Homogeneous Method: Tips and Tricks for Beginners
- em919
- · Replies 4 ·
Graduate Solving Inhomogeneous Wave PDE with Separation of Variables on (0,pi)
- jacoleen
- · Replies 4 ·
Graduate Derivatives and Partial Derivatives
- Trenthan
- · Replies 4 ·
Undergrad What is the Correct Particular Solution for y''-2y'-3y=-3te^-t?
- blizzard750
- · Replies 2 ·
Graduate Completeness of Legendre Polynomials
- ObsessiveMathsFreak
- · Replies 3 ·
Graduate Variable Coefficient Differential Equation problem
- mknut389
- · Replies 1 ·
Graduate How to Solve a Complex 2D PDE in Toroidal Coordinates?
- maverick280857
- · Replies 1 ·
Graduate What Black-Scholes Research Problem Could I Explore for a 20-30 Page Math Paper?
- MrMumbleX
- · Replies 1 ·
Graduate Solving Laplace's Equation with Mass
- homology
- · Replies 3 ·
Graduate How Can Nonlinear ODEs Be Analytically Solved for Complex Potentials?
- andrewr
- · Replies 6 ·
Graduate Help with conversion from rectangular to spherical coordinates
- yungman
- · Replies 4 ·
Undergrad Homogenous constant coefficient linear differential equations
- kmikias
- · Replies 1 ·
Graduate How Can I Determine Stability from Mathematica's Root Function Output?
- senan
- · Replies 3 ·
Graduate Variation of parameters and the constraint
- randybryan
- · Replies 6 ·
Graduate Problem with Crank-Nicholson for solving hyperbolic equations
- uqjzhang
- · Replies 4 ·
Graduate Laplace Transform of DE with Discontinuous Forcing Function
- lobsterback
- · Replies 1 ·
Graduate Euler Lagrange equation - weak solutions?
- muzialis
- · Replies 1 ·
Graduate Can this first order non-linear ODE be solved for all values of r?
- LAHLH
- · Replies 12 ·
Graduate Laplace equation on square (using fourier transform)
- bremvil
- · Replies 2 ·
Graduate Is This Civil Engineering PDE Linear?
- omarxx84
- · Replies 6 ·
Undergrad 1st order nonhomogeneous dif'l e'n
- rbwang1225
- · Replies 3 ·
Graduate 4th order linear, with constant piecewise coefficients
- sir_manning
- · Replies 1 ·
Graduate Why a PDE is an infinite dimensional system
- zhidayat
- · Replies 4 ·
Undergrad Simultanious DE - Kinetic Reaction
- paunonen89
- · Replies 8 ·
High School What does it mea for an equation to be homogeneous?
- bmed90
- · Replies 3 ·
Graduate Approaches to Runge Kutta step size adjustments
- barker7
- · Replies 3 ·
Undergrad Help simple 2nd order linear ODE
- y2kevin
- · Replies 1 ·
Undergrad System of Coupled Differential Equations
- Xian
- · Replies 4 ·
Undergrad Help with Heaviside unit functions
- phillyj
- · Replies 2 ·
Graduate Evaluating Vorticity in a Parallelepiped Domain
- mortain
- · Replies 1 ·
Graduate Heat Conduction of Metal Rod (Differential Equations)
- gohoubi
- · Replies 2 ·
Graduate Eigenvalues of Linear Time Varying systems
- sodemus
- · Replies 1 ·
Graduate Is MATLAB's ode45 Suitable for Solving 2D Coupled Nonlinear ODEs?
- ams31
- · Replies 12 ·
Undergrad Finding a general soution to a differential equation
- Rubik
- · Replies 8 ·
Graduate Finite Difference Discretization of a Fourth Order Partial Differential Term
- Hypatio
- · Replies 4 ·
Undergrad Can the Z-transform be used for both continuous and discrete functions?
- milesyoung
- · Replies 2 ·
Graduate Solving 3rd order ODE with B.C. of Numan and Dirichlet Type
- oby7842
- · Replies 2 ·
Graduate How do I find the minimum value of f(k) with summations and exponents?
- onako
- · Replies 2 ·
Undergrad How Can Friction Be Incorporated into a Brachistochrone Model?
- hy23
- · Replies 3 ·
Graduate How to Handle Fourth Order Implicit Runge-Kutta Methods?
- Deadstar
- · Replies 1 ·
Graduate Wronskian and Linear Independence of y1 = t2 and y2 = t|t| in Second Order ODEs
- Gear300
- · Replies 1 ·
Graduate The Convolution of Detla Functions
- EngWiPy
- · Replies 2 ·
Undergrad A quick explanation of stability?
- dillonmhudson
- · Replies 2 ·
Graduate Second derivative of an autonomous ODE
- MurdocJensen
- · Replies 5 ·
Graduate Helmholtz 2D PDE around general shape (eg a figure 8)
- veneficus5
- · Replies 5 ·
Undergrad Solution to a DE using variation of parameters
- Xyius
- · Replies 6 ·
Graduate Who knows the original publication of Laplace transformation by Laplace?
- dongsh2
- · Replies 1 ·
Graduate Dirac delta, generalizations of vector calculus and sigh vagueness
- nonequilibrium
- · Replies 5 ·
Graduate Is the Earth a Stable System in Terms of Its Rotation Around the Sun?
- chwala
- · Replies 8 ·
Undergrad Understanding Absolute Values.
- jtabije
- · Replies 5 ·
Graduate Mastering PDEs: Techniques and Tricks for Solving with Separation of Variables
- spaghetti3451
- · Replies 1 ·
Graduate Can you help with this 2nd-order, linear, homog, w/const.coeff proof?
- diligence
- · Replies 5 ·
Undergrad Y'' + 4y = ax + b how can i solve?
- c8c811
- · Replies 6 ·
Graduate Euler's formula & expressing combinations of sin and cos as cos
- skweiler
- · Replies 2 ·
Graduate Solving a PDE Eigenvalue Problem: Proving All Eigenvalues Are Positive
- ekalbh
- · Replies 2 ·
Undergrad Advice on a great self study book. PDE
- vuser88
- · Replies 4 ·
Graduate Numerical Solution for BVODE without First Derivatives: Help Required
- ktsharp
- · Replies 5 ·
Graduate PDE with non-constant coefficient
- FrankST
- · Replies 2 ·
Undergrad On differential equations texts
- mathematicsma
- · Replies 2 ·
Graduate ? solution of ( dy / dx ) + ( y / (sqrt(a+(x^2))) ) = 0
- smslca
- · Replies 8 ·
Undergrad What are Spherical Harmonics and their Applicability in Applied Math?
- spaghetti3451
- · Replies 2 ·
Graduate Understanding Symmetry in ODE Solutions
- MurdocJensen
- · Replies 8 ·
Graduate Do Convergence Solutions of ODE/PDEs Match Their Asymptotic Solutions?
- chwala
- · Replies 3 ·
Graduate Solving Diff. Equation of Epidemic Model: Help Needed
- madiha.sahar
- · Replies 2 ·
Graduate Is the Dirac Delta Function Even?
- sirona
- · Replies 3 ·
Graduate Is the Algorithm r_n+1= r_n/(1+sqrt(2-r_n)) Stable?
- whattttt
- · Replies 1 ·
Graduate Arnold: ODEs, Ch. 1, section 2.2
- Rasalhague
- · Replies 2 ·
Graduate Why is Arnold's extended phase space a strip rather than a rectangle?
- Rasalhague
- · Replies 2 ·
Graduate Divergence Theorem & Neumann Problem Explained
- roldy
- · Replies 15 ·
Graduate Unsuccessful attempts to solve a linear second order PDE system
- jmk9
- · Replies 6 ·
Graduate Does the definition of Φ-invariance require that I(x) = T for all x in S?
- Rasalhague
- · Replies 12 ·
Graduate Newton's method with inequality constraint
- Denise00
- · Replies 5 ·
Graduate Coupled first order differential equations
- omni-impotent
- · Replies 1 ·