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 How Can Eigenvalues Influence ODE Solutions in Phase Plane Simulations?

  • Jhenrique
  • · Replies 1 ·
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Undergrad A differential equation question

  • mech-eng
  • · Replies 3 ·
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3

Finding an Expression for Y in a Linear Multistep Method

  • shen07
  • · Replies 1 ·
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1

Solving Transport Eq. for Level Curves: x=X(t)

  • simo1
  • · Replies 3 ·
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3

Graduate How to Solve a System of Non-Linear ODEs in Physics?

  • metamathphys
  • · Replies 3 ·
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3

Graduate Are General Solutions of Linear ODEs Always Equivalent?

  • Jhenrique
  • · Replies 1 ·
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1

Undergrad Solutions about Singular and Ordinary points

  • Mathmanman
  • · Replies 3 ·
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3

Undergrad A differential equation question

  • mech-eng
  • · Replies 5 ·
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5

Determining Stability of Equilibrium Point for x'=y-x3-xy2, y'=-x-x2y-y3

  • onie mti
  • · Replies 1 ·
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1

Solving Polar Coordinates in System of Equations

  • onie mti
  • · Replies 2 ·
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2

Calculating the coefficients with the Fourier series

  • mathmari
  • · Replies 6 ·
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6

Graduate Solving a PDE: Analytical Solution for $$\alpha \frac{\partial f}{\partial r}$$

  • member 428835
  • · Replies 21 ·
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Graduate Derivation of an integral identity from the kdv equation.

  • Strum
  • · Replies 5 ·
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5

Scaled applied forces for an elastic rod

  • onie mti
  • · Replies 1 ·
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1

Energy to compress a spring 3 units

  • Dustinsfl
  • · Replies 7 ·
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7

Interpreting Constant A & Deriving k in Air Pressure Decay

  • fuzz95
  • · Replies 3 ·
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3

Initial and boundary value problem

  • mathmari
  • · Replies 5 ·
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5

Graduate A system of differential equations not having a analytical solution

  • marellasunny
  • · Replies 4 ·
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4

Undergrad Nonhomogeneous 2nd order dif equation

  • darjiaus7
  • · Replies 2 ·
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2

Graduate Is the Hypothesis of Real and Imaginary Components for F(ω) True?

  • Jhenrique
  • · Replies 10 ·
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10

How Can You Solve the Scaled Transport Equation in the First Quadrant?

  • onie mti
  • · Replies 2 ·
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2

Solving Coupled ODEs: Analytical Solutions?

  • Pascal1
  • · Replies 1 ·
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1

Calculating the coefficients A_n

  • mathmari
  • · Replies 1 ·
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1

Graduate Homogeneous function of degree n

  • clairaut
  • · Replies 4 ·
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4

Graduate Understanding Boundary Conditions in ODEs for Beginners

  • member 428835
  • · Replies 2 ·
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2

How would you solve for x using the double angle formula?

  • bsmithysmith
  • · Replies 3 ·
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3

Graduate Integral and differential of summation

  • Jhenrique
  • · Replies 2 ·
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2

How to Calculate the Remaining Mass of a Radioactive Substance Over Time?

  • mathdrama
  • · Replies 1 ·
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1

Undergrad Homogeneous differential equations

  • AlfredPyo
  • · Replies 1 ·
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1

Undergrad Fourier integral and Fourier Transform

  • Jhenrique
  • · Replies 4 ·
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4

Graduate Laplace transform for set of differential equations

  • aaaa202
  • · Replies 2 ·
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2

Graduate Separation of variables for solutions of partial differential equation

  • jamesb1
  • · Replies 1 ·
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1

Undergrad Practice problems for differential equations

  • AlfredPyo
  • · Replies 2 ·
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2

Undergrad What is the difference between a contour plot and a bifurcation plot?

  • JonDrew
  • · Replies 2 ·
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2

How do I get the relation T_n(t)=Q_n(t)A_n(t)?

  • mathmari
  • · Replies 2 ·
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2

Undergrad What does it mean for a function to be defined on an interval?

  • AlfredPyo
  • · Replies 5 ·
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5

Graduate Second order system of odes with variable coefficients

  • c0der
  • · Replies 18 ·
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18

Graduate Solving a Laplace Transform Problem: Where Am I Going Wrong?

  • metdave
  • · Replies 3 ·
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3

Undergrad Where Does the δ(t) Term Come From in First Order Unit Step Response?

  • charlie.elvers
  • · Replies 1 ·
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1

Graduate Propogation of Coefficient Standard Deviations using Derivatives

  • jbeardsley
  • · Replies 2 ·
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2

Graduate Why inverse laplace is line integral?

  • Jhenrique
  • · Replies 7 ·
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7

Graduate Confusion over the definition of a Green's function

  • TheFerruccio
  • · Replies 5 ·
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5

Graduate Solutions for diff equation in form of series

  • Jhenrique
  • · Replies 12 ·
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12

Graduate Is PID Control Possible for a 2nd Order System?

  • Jhenrique
  • · Replies 5 ·
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5

Graduate What is the solution of this differential equation?

  • Esmaeil
  • · Replies 2 ·
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2

Undergrad What Are the Special Names for These Functions?

  • Jhenrique
  • · Replies 6 ·
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6

Graduate Normal derivative at boundary Laplace's equation half plane

  • nickthequick
  • · Replies 2 ·
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2

Graduate Solution for system of diff equations

  • Jhenrique
  • · Replies 4 ·
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4
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4

Graduate Connection between unilateral laplace

  • Jhenrique
  • · Replies 2 ·
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2

Graduate How can I overcome errors in RK4 due to linearly interpolated data?

  • Liferider
  • · Replies 1 ·
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1

Graduate How to compute an energy function of PDE ?

  • xortdsc
  • · Replies 2 ·
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2

Graduate What are the conditions for using the Laplace transform?

  • Jhenrique
  • · Replies 6 ·
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6

Boundary value problem-find the coefficients

  • mathmari
  • · Replies 15 ·
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15

Undergrad Second order differential equation form

  • negation
  • · Replies 3 ·
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3

Graduate Relationship between Simple Harmonic Motion Equation and Wave Equation

  • CraigH
  • · Replies 1 ·
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1

Graduate Truncation Error and Second Order Accuracy.

  • mm391
  • · Replies 1 ·
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1

Graduate Symbolic solve coupled second order differential equations

  • newin
  • · Replies 1 ·
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1

Graduate PDE Existence/Uniqueness Question

  • thegreenlaser
  • · Replies 2 ·
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2

Graduate Sinusoidal and exponential series

  • Jhenrique
  • · Replies 6 ·
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6

Graduate How get amplitude and phase as a function of time?

  • Jhenrique
  • · Replies 4 ·
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4

Undergrad DE problem: Dog chasing a rabbit

  • camilus
  • · Replies 23 ·
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23

Graduate Susskind said that the square of a differential equal zero

  • Jonsson
  • · Replies 15 ·
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15

Undergrad Can a repeated integral be simplified into a single integral?

  • Jhenrique
  • · Replies 7 ·
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7

Graduate Where Can Adams-Bashforth-Moulton Method be Applied in Real-World Sciences?

  • iwan89
  • · Replies 5 ·
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5

Eigenvalue problem of the form Sturm-Liouville

  • mathmari
  • · Replies 13 ·
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13
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5

Graduate Proving using rodrigue's formula (a very challenging question)

  • artisticmath
  • · Replies 4 ·
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4

Graduate What are the general forms of implicit and parametric equations?

  • Jhenrique
  • · Replies 6 ·
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6

Undergrad Differential equation x^2*y'=y^2

  • Mr. Fest
  • · Replies 3 ·
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3

Graduate Classical Poissonian Process: Time-Dependent ω

  • aaaa202
  • · Replies 1 ·
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1

Find Eigenvalues for $$y''+\lambda y=0$$

  • mathmari
  • · Replies 33 ·
2
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33

Finding Temperature of Hot Sandwich: Equation & Answers

  • arroww
  • · Replies 1 ·
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1

In which year does the population reach 2000 people?

  • eleventhxhour
  • · Replies 1 ·
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1

Non-dimensional differential equation 2

  • ra_forever8
  • · Replies 1 ·
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1

How Does the Order of μ Affect the Height Function h(μ)?

  • ra_forever8
  • · Replies 3 ·
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3

Graduate Y''=-(t^2)y differential equation

  • HomogenousCow
  • · Replies 2 ·
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2

Graduate How Do You Model Rainfall and Runoff on a Flat Surface?

  • analysis001
  • · Replies 1 ·
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1

How Can Laplace's Method Simplify This Integral?

  • ra_forever8
  • · Replies 1 ·
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1

Non-dimensional differential equation 1

  • ra_forever8
  • · Replies 1 ·
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1

Graduate Spatial and temporal periods and periodic functions

  • Jhenrique
  • · Replies 3 ·
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3

Derivative of bessel function informal proof

  • skate_nerd
  • · Replies 7 ·
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7

Solve Equations for Variable dp/dL with Expert Help

  • samiwarraich
  • · Replies 4 ·
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4

Graduate Green's functions for ODEs, jump conditions

  • chipotleaway
  • · Replies 2 ·
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2

Undergrad Can a Differential Equation Have an Unrelated Variable?

  • MathewsMD
  • · Replies 2 ·
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2

Graduate System of linear differential equations

  • aaaa202
  • · Replies 1 ·
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1

Laplace's Method (Integration)

  • ra_forever8
  • · Replies 1 ·
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1

Graduate What Do ωt, kx, and σ Represent in Mathematical Transformations?

  • Jhenrique
  • · Replies 10 ·
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10

Graduate What is the solution to this ODE (and SDE)?

  • Only a Mirage
  • · Replies 2 ·
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2

Undergrad Differential equations and Cramer's rule

  • JasonHathaway
  • · Replies 2 ·
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2

RLC Series Circuit: State Equations

  • Dustinsfl
  • · Replies 3 ·
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3

Graduate Simplifying a differential equation

  • mash17
  • · Replies 1 ·
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1

How Can Gronwall's Inequality Help Prove a Mathematical Lemma?

  • kalish1
  • · Replies 4 ·
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4

Graduate Multiplying out differential operators

  • chipotleaway
  • · Replies 2 ·
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2

Graduate Shift operator is useful for what?

  • Jhenrique
  • · Replies 2 ·
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2

Euler Lagrange equation of motion

  • skate_nerd
  • · Replies 5 ·
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5

Undergrad Solving an ODE: Seeking Suggestions

  • metamathphys
  • · Replies 8 ·
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8

Graduate Convolution product between x² and x³

  • Jhenrique
  • · Replies 5 ·
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5

How Do You Prove a Specific Fourier Transform Property?

  • mathmari
  • · Replies 4 ·
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4

Graduate Solving the differential equation of an object oscillating in water.

  • RYANDTRAVERS
  • · Replies 1 ·
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1