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 Property of the convolution product

  • Jhenrique
  • · Replies 4 ·
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4
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Graduate A general methodical way to solve all first degree first order

  • s0ft
  • · Replies 5 ·
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5

Graduate Solution for mixed differential and algebraic equations

  • WLamers
  • · Replies 1 ·
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1

Evaluating an Integral: Laplace Transform Method

  • polygamma
  • · Replies 2 ·
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2

Graduate Solving 2nd ODE and Multivariable Calculus for Wave Equation

  • weakness66
  • · Replies 4 ·
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4

Phase Line and long term behavior with initial value

  • Vanrichten
  • · Replies 2 ·
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2

Tracking Kool-Aid Through Lakes Alpha & Beta

  • ends
  • · Replies 5 ·
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5

Graduate Fourier transform of multivalued functions

  • B_line
  • · Replies 1 ·
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1

Undergrad Solving differential equation(separable)

  • aerograce
  • · Replies 1 ·
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1

Undergrad How Can You Simplify sin(n*pi/3) in Terms of Powers of 1?

  • Slightly
  • · Replies 1 ·
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1

Undergrad Separable Differential Equations Using Initial Values

  • alexsylvanus
  • · Replies 1 ·
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1

Graduate Inexact differential equation with unknown function M(t)

  • tom.stoer
  • · Replies 9 ·
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9

Undergrad E to the -y plus trial and error math?

  • PhanthomJay
  • · Replies 8 ·
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8

Finding State Matrices for a Mass Spring System

  • Dustinsfl
  • · Replies 1 ·
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1

Solving D.E Word Problem: Radium Decompose, Half Life 1600, 200 Years

  • bergausstein
  • · Replies 12 ·
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12

Solving Integrals with Exponential Functions

  • bergausstein
  • · Replies 9 ·
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9

What is this problem asking for?

  • kalish1
  • · Replies 1 ·
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1

Differential Equation of Unknown Type

  • paulmdrdo1
  • · Replies 15 ·
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15

Differential equation population growth problem

  • paulmdrdo
  • · Replies 5 ·
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5

Triple Population in X Years: Proportional Increase Rate Calculation

  • bergausstein
  • · Replies 1 ·
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1

Interpreting of another proposition full of symbols

  • kalish1
  • · Replies 1 ·
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1

Meaning of Symbols in Differential Equation

  • paulmdrdo
  • · Replies 2 ·
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2

Undergrad General Question about Undetermined Coefficients

  • afil
  • · Replies 4 ·
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4

Solving Homogeneous Function Confusion: ln(Y/X) in Numerator

  • zkee
  • · Replies 2 ·
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2

Graduate Solving x''(t)+Kx(t)=0 when x has the form sin(ωt+ø): the soln r LD

  • gikiian
  • · Replies 3 ·
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3

Help Me Solve This Differential Equation!

  • paulmdrdo1
  • · Replies 6 ·
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6

Graduate Any suggestions for finding the inverse Laplace transform of 11/(s^2+16)^2?

  • bmed90
  • · Replies 1 ·
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1

The finite difference method for the heat equation-error

  • mathmari
  • · Replies 16 ·
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16

Undergrad Laplace Transform for shifted Unit Step Function

  • bmed90
  • · Replies 1 ·
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1

What Is the Differential Equation for Given Solutions?

  • bergausstein
  • · Replies 11 ·
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11

Elimination of arbitrary constants 2

  • bergausstein
  • · Replies 7 ·
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7

Finding D.E Solutions for $x\sin(y)+x^2y=c$ and $3x^2-xy^2=c$

  • bergausstein
  • · Replies 9 ·
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9

Graduate Partial differential equation discretization. HELP D:

  • maistral
  • · Replies 1 ·
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1

Elimination of arbitrary constants.

  • bergausstein
  • · Replies 8 ·
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8

Graduate How to Formulate a Differential Equation for Deformable Object Manipulation?

  • Liferider
  • · Replies 4 ·
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4

Undergrad Finding dE/dx: Using the Chain Rule

  • mrmojorizing
  • · Replies 1 ·
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1

Graduate Solution: Solving Harmonic Oscillation Differential Equation

  • Runei
  • · Replies 4 ·
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4

DE Tutorial - Chapter 1: The Basics of Ordinary Differential Equations

  • Chris L T521
  • · Replies 1 ·
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1

Assistance needed for this ODE problem

  • heaviside
  • · Replies 3 ·
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3

Graduate What does the operator A'A represent in image processing?

  • pamparana
  • · Replies 1 ·
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1

Ewaz's question at Yahoo Answers regarding a Bernoulli Equation

  • MarkFL
  • · Replies 1 ·
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1

How can I choose which is the most suitable method?

  • evinda
  • · Replies 15 ·
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15

How to Solve the Given Differential Equation?

  • Saitama
  • · Replies 13 ·
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13

Find u,v of the differential equation

  • evinda
  • · Replies 29 ·
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Graduate Elegant 1/(1-x) Identities for Complex Algebraic Manipulations and Logarithms

  • ClamShell
  • · Replies 5 ·
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5

Graduate Stability and Accuracy of Diffusion Equation Solution

  • baseball07
  • · Replies 2 ·
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2

Mass is subject to external force

  • evinda
  • · Replies 4 ·
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4

Graduate How Do You Solve a 2nd Order Linear Non-Homogeneous DE with Imaginary Roots?

  • mathnerd15
  • · Replies 1 ·
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1

Mathematical Modeling Problem for 500-gal Aquarium Impurities

  • MarkFL
  • · Replies 1 ·
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1

Find Integral: $\int_{a}^{\infty}e^{-st}t^{n}dt$

  • evinda
  • · Replies 39 ·
2
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Graduate Boundary conditions for inhomogeneous non-sepearable 3D PDE

  • vibe3
  • · Replies 1 ·
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Verify a function is a solution.

  • ISITIEIW
  • · Replies 2 ·
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2

How can I show that there is exactly one f?

  • evinda
  • · Replies 6 ·
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6
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Orthogonal trajectories of curves

  • evinda
  • · Replies 6 ·
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6

Graduate Integral after alpha parametrization

  • jd24680
  • · Replies 1 ·
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1

Numerical Methods: Solving Exam Pickle with Factorization & Stability

  • Thorra
  • · Replies 8 ·
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8

Amber's questions at Yahoo Answers regarding linear first order ODEs

  • MarkFL
  • · Replies 1 ·
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1

Undergrad Help with logistic growth problem

  • amazingAZN
  • · Replies 1 ·
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1

Differential eq of first order and higher degree

  • Suvadip
  • · Replies 5 ·
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5

Graduate Why Is the Fourier Transform's Conversion Factor Split Between Kernels?

  • Jhenrique
  • · Replies 1 ·
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1

Graduate Other definition for fourier series

  • Jhenrique
  • · Replies 3 ·
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3

Laplace Transform with two steps

  • Dustinsfl
  • · Replies 2 ·
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2

Inverse Laplace Transform problem

  • Dustinsfl
  • · Replies 1 ·
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1

ZZZZZzzz's question at Yahoo Answers regarding a mixing problem

  • MarkFL
  • · Replies 1 ·
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1

Graduate What is the validity of the supposed solution to the Millenium Problem?

  • truffaldino
  • · Replies 12 ·
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12

Undergrad Please suggest some good topics for Maths research paper

  • visharad
  • · Replies 6 ·
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6

Heat equation with annoying source term

  • tylerbizoff
  • · Replies 1 ·
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1

Graduate General Solution for 2nd Order PDE: Is it Possible?

  • Jhenrique
  • · Replies 2 ·
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2

Undergrad Determining Which Variable Is Independent

  • Bashyboy
  • · Replies 1 ·
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1

Graduate Find a solution for differential equations

  • ip88
  • · Replies 3 ·
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3

How to Solve This 2nd Order ODE in Control Systems?

  • ChemEng2
  • · Replies 2 ·
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2

Differential Approximation Task I

  • Thorra
  • · Replies 16 ·
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16

Graduate Method of characteristics and second order PDE.

  • peripatein
  • · Replies 1 ·
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1

Undergrad What are the unknown functions and variables in this Mathematica program?

  • Reem Hashem
  • · Replies 1 ·
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1

Differential Approximation with Boundary Conditions

  • Thorra
  • · Replies 21 ·
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21

Graduate How do we find the Fourier coefficient for a cosine term in a Fourier series?

  • member 428835
  • · Replies 4 ·
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4

Transfer function of a damped hanging mass

  • Dustinsfl
  • · Replies 2 ·
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2

Graduate Which Values of x and y Should I Use for Poisson PDE Discretisation?

  • maistral
  • · Replies 7 ·
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7

Undergrad Differential Equation Solver Software: Find Your Solution Now

  • UCGAS
  • · Replies 3 ·
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3

Graduate How is the initial conditions for PDE?

  • Jhenrique
  • · Replies 10 ·
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10

Graduate Solving Logistic ODE with Non-commuting Matrices

  • Manchot
  • · Replies 6 ·
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6

Graduate How Are Derivatives Interrelated in ODEs and PDEs?

  • Jhenrique
  • · Replies 1 ·
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1

Graduate NUMERICAL approach to NONLINEAR PDE

  • Romik
  • · Replies 4 ·
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4

Graduate What is the class of this equation?

  • theqavor
  • · Replies 1 ·
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1

Finite difference method-convergence

  • mathmari
  • · Replies 31 ·
2
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31

Lotka-Volterra equations mistake

  • kalish1
  • · Replies 1 ·
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1

Differential Approximation Task III

  • Thorra
  • · Replies 7 ·
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7

Graduate Difference between generating function and Rodrigue's formula?

  • sreerajt
  • · Replies 3 ·
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3

Non-linear first order differential equation question

  • talha1
  • · Replies 4 ·
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4

Undergrad Solving DE of Second Order - Computer Engineer in Sweden

  • YassinA
  • · Replies 5 ·
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5
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1
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Graduate Solving Laplacian Operators and DEs

  • Hertz
  • · Replies 3 ·
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3

Graduate Help with a wave equation derivation

  • mysearch
  • · Replies 2 ·
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2

Understanding the Reduction of Order Method for Solving LODEs

  • Carla1985
  • · Replies 2 ·
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2

Existence of Laplace transform

  • alyafey22
  • · Replies 3 ·
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3

Undergrad How to solve an ODE in the form y' = c + k*sin(y)

  • AsifHirai
  • · Replies 1 ·
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1