Differential Equations Forum

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 Are Thermodynamic Equations Considered PDEs?

  • MexChemE
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3

Graduate Slope Fields for First and Second Order ODEs | Definition and Generation

  • Jhenrique
  • · Replies 1 ·
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1

Undergrad Finding the range of this function of 2 variables:

  • JC3187
  • · Replies 6 ·
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6

Graduate Advanced numerical solution of differential equation

  • rickyflair
  • · Replies 2 ·
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2

Runge-Kutte: stability of fixed points

  • ra_forever8
  • · Replies 3 ·
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3

Graduate Solution for system of equations

  • Jhenrique
  • · Replies 9 ·
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9
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Prove Local Uniqueness of DE Solutions on Interval

  • onie mti
  • · Replies 1 ·
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1

Draw Trajectories for Autonomous DE: Where to Begin?

  • onie mti
  • · Replies 5 ·
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5

Graduate Is C1*C1 Always Equal to C1 in Convolution Integrals with e^At?

  • aaddcc
  • · Replies 1 ·
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1

Jaganmaya's question at Yahoo Answers regarding a first order ODE

  • MarkFL
  • · Replies 1 ·
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1

Proving Local Lipschitz Property for Linear Functions on Real Numbers

  • onie mti
  • · Replies 5 ·
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5

Undergrad Partial and total differentiation

  • Jhenrique
  • · Replies 2 ·
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2
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1

Parabolic 2. order partial differential equation

  • mathmari
  • · Replies 2 ·
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2

Graduate Intuitive understanding of the reference solution (numerical analysis)

  • jjr
  • · Replies 2 ·
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2

Is a Limit Point Always an Equilibrium in Differential Equations?

  • simo1
  • · Replies 1 ·
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1

Show Integral of $f(z)$ with Exponential Form

  • polygamma
  • · Replies 1 ·
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1

Maximal Existence Interval for DE with Continuous Derivative

  • onie mti
  • · Replies 1 ·
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1
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1

Can y'(x)=5x^3(y-1)^\frac{1}{5} have infinitely many solutions?

  • alexmahone
  • · Replies 6 ·
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6

Graduate Eigenvalue problem with nonlocal condition

  • kajzlik
  • · Replies 6 ·
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6

Uniqueness of Solution for x' = f(x) = √(1-x^2), x(2) = 1

  • onie mti
  • · Replies 5 ·
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5

Proof of Existence: IVP w/ Continuous I & b in I

  • onie mti
  • · Replies 1 ·
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1

How High Can a 100lb Ball Be Thrown Upwards at 100ft/sec?

  • Dustinsfl
  • · Replies 1 ·
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1

Understanding Autonomous Functions: Helping Me Grasp It!

  • simo1
  • · Replies 1 ·
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1

Undergrad What is the difference between these types of differential equations?

  • Jhenrique
  • · Replies 8 ·
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8

Graduate Observed angular velocity function of object moving in straight path

  • bendloewen
  • · Replies 3 ·
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3

What is meant by find the time constant?

  • Dustinsfl
  • · Replies 5 ·
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5

Graduate Coupled driven and damped oscillators

  • Runei
  • · Replies 1 ·
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1

Solving the Initial Value Problem for x'=x^3 with x(0)=1

  • simo1
  • · Replies 2 ·
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2

Douglas' questions about Laplace Transforms

  • Prove It
  • · Replies 1 ·
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1

Graduate 1st order PDE, seems easy but still confusing

  • Irid
  • · Replies 4 ·
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4

Graduate Solving second order coupled differential equation

  • Ravi Mohan
  • · Replies 2 ·
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2

Dissipative Phenomena: Diffusion Equation with Source

  • simo1
  • · Replies 1 ·
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1

Graduate Why a explicit ODE is explicited with y of higher grade?

  • Jhenrique
  • · Replies 4 ·
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4

Graduate 2nd order homogenous constant coefficient ODE question

  • quasar987
  • · Replies 4 ·
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4

Graduate The spectrum of a bounded differential equation

  • greentea28a
  • · Replies 4 ·
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4

Undergrad What Is the Intuitive Explanation of the Laplace Transform?

  • member 428835
  • · Replies 3 ·
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3

Graduate Solution for equation of 2,3,4, degree

  • Jhenrique
  • · Replies 1 ·
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1

Undergrad Can some one teach me Differential Equations?

  • z.js
  • · Replies 10 ·
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10

Undergrad Solving ode with complex numbers

  • cragar
  • · Replies 1 ·
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1

Graduate Weak Form of the Poisson Problem

  • Morberticus
  • · Replies 1 ·
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1

Continuity of IVP: Show $\lim_{y_0\to x_0}u(t,y_0)=u(t,x_0)$

  • Krizalid1
  • · Replies 1 ·
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1

Undergrad Solution to the diff. eqn. dy/y-a*dx/x = b, where a and b are constant

  • lar739
  • · Replies 5 ·
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5

Cart Striking Spring: Velocity & Equations

  • Dustinsfl
  • · Replies 5 ·
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5

Displacement of mass spring system

  • Schmidt
  • · Replies 1 ·
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1

Graduate What Conditions Make a Matrix the Hessian of a Function?

  • quasar987
  • · Replies 0 ·
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0

Solving the RLC Circuit Differential Equation

  • Dustinsfl
  • · Replies 10 ·
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10

Graduate Find Limits of Integration in Polar Coordinates with Laplace Math Help

  • vanceEE
  • · Replies 2 ·
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2

Solving a first-order differential equation

  • Saitama
  • · Replies 4 ·
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4
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1

Eliminating constants in a second derivative of a function

  • bergausstein
  • · Replies 4 ·
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4

Undergrad Is This the Correct Method for Solving Differential Equations on Midterms?

  • lyj0211
  • · Replies 5 ·
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5

Graduate General Higher Order Linear Non-Homogeneous Diff Eq's

  • SrVishi
  • · Replies 1 ·
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1

Graduate How Does Trigonometric Identity Simplify Forced Vibration Equations?

  • jellicorse
  • · Replies 2 ·
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2

What is the transfer function for this system?

  • Dustinsfl
  • · Replies 3 ·
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3

Graduate Should This System Settle? - Discrepancy in MathCad Solving Methods

  • aragorn77777
  • · Replies 2 ·
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2

Show energy of the wave eqn is conserved from bc's

  • skate_nerd
  • · Replies 4 ·
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4

Graduate Finding the graph formula with know points and other equation.

  • Pharrahnox
  • · Replies 5 ·
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5

Khaled's question at Yahoo Answers regarding a Bernoulli equation

  • MarkFL
  • · Replies 1 ·
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1

Graduate How Do Interactions Between Two Species Model Their Population Dynamics?

  • ra_forever8
  • · Replies 3 ·
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3

Differential Equations by separation of variables

  • LAK
  • · Replies 2 ·
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2

How to Solve a Differential Equation Using Separation of Variables?

  • LAK
  • · Replies 1 ·
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1

Solve Linear Inhomogeneous 2nd Order IVP: Joe Smalls' Question

  • MarkFL
  • · Replies 1 ·
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1

Integral equation by successive approximation 2

  • Suvadip
  • · Replies 1 ·
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1

Finding the limit of successive approximations for an integral equation

  • Suvadip
  • · Replies 1 ·
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1
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3

Graduate How Do Rate Constants Change with an Intermediate State in a Kinetic Model?

  • phyalan
  • · Replies 3 ·
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3

Graduate Solving the heat equation with complicated boundary conditions

  • womfalcs3
  • · Replies 9 ·
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9

Graduate Why Does My Bioheat Numerical Solution Diverge?

  • eprparadox
  • · Replies 9 ·
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9

Bounded Output Bounded Input BIBO

  • Dustinsfl
  • · Replies 1 ·
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1

Find \(H(s)\) for Causal LTI System: Region of Convergence

  • Dustinsfl
  • · Replies 1 ·
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1

Solving Laplace Transform: \[(s+1)^2/(s^2-s+1)\]

  • Dustinsfl
  • · Replies 1 ·
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1
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2

Magnitude Fourier transform lowpass, highpass, or bandpass

  • Dustinsfl
  • · Replies 6 ·
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6

Graduate What Are the Dynamics of a Single Species Population Model?

  • ra_forever8
  • · Replies 7 ·
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7

Undergrad How Does the Hankel Transform Solve Problems in Cylindrical Domains?

  • tomizzo
  • · Replies 6 ·
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6

Solving 2nd Order Homogeneous ODE - Joe's Question on Yahoo Answers

  • MarkFL
  • · Replies 1 ·
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1

-b.1.3.1 Order and if eq is linear

  • karush
  • · Replies 6 ·
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6

Undergrad Integral of (dx)^2: Answers Here

  • alpha25
  • · Replies 6 ·
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6

Partial Fractions for Cubic: Setup & Solve

  • Dustinsfl
  • · Replies 5 ·
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5

D.E Law of Cooling: Find 9:20am Reading & Correct Temp

  • bergausstein
  • · Replies 3 ·
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3

Undergrad Simple question - Derivation for obtaining Intgrating Factor

  • jellicorse
  • · Replies 2 ·
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2

Algebraic manipulations for system of differential equations

  • kalish1
  • · Replies 1 ·
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1

Graduate Is this behaviour generalizable?

  • Whovian
  • · Replies 1 ·
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1

Graduate Found a cool Non-autonomous Coupled System of ODEs

  • TylerH
  • · Replies 1 ·
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1

Answer Radium & Town Population: 200yrs, 800k

  • bergausstein
  • · Replies 2 ·
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2

Cassi's question at Yahoo Answers regarding a first order linear ODE

  • MarkFL
  • · Replies 1 ·
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1

Graduate Solving Nonlinear ODE: magnetism with varying particle charge

  • Eloise
  • · Replies 5 ·
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5

Graduate Rotating Vector Spherical Harmonics Solutions

  • Gwinterz
  • · Replies 5 ·
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5

Find the general solution of The ff. D.E

  • bergausstein
  • · Replies 11 ·
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11

What is the velocity of the jet?

  • Dustinsfl
  • · Replies 2 ·
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2

Bobby's question at Yahoo Questions regarding bacterial growth

  • MarkFL
  • · Replies 1 ·
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1

Bob's question at Yahoo Answers regarding equilibrum points of ODE

  • MarkFL
  • · Replies 1 ·
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1

Graduate Coupled 2nd order diff eq's (Bessel functions?)

  • julian
  • · Replies 2 ·
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2

Graduate Extracting a fourier series of pure tones from a signal

  • tanus5
  • · Replies 4 ·
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4

Graduate Wave eqn. Greens func. depends only on rel. distance proof.

  • center o bass
  • · Replies 1 ·
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1

Graduate Finite Difference Solution to Poisson's Equation on Irregular Domain

  • Morberticus
  • · Replies 2 ·
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2

Clare's question at Yahoo Answers regarding a first order linear IVP

  • MarkFL
  • · Replies 1 ·
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1