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 I integrate this ODE numerically?

  • michujo
  • · Replies 1 ·
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1

Graduate System of DEs with different denominators

  • sebasbri
  • · Replies 2 ·
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2

Undergrad What is the Laplace transform of sin2tcos2t?

  • RafiS
  • · Replies 6 ·
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6

Undergrad Conversion of System of Eq's to 2nd Order Diff Eq

  • bizoid
  • · Replies 4 ·
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4

Undergrad Trial Solutions of Particular Integrals?

  • Davio
  • · Replies 7 ·
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7

Graduate Solving Laplace Equation on Square: Proving |u|<=1

  • Mechmathian
  • · Replies 5 ·
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5

Undergrad Differential equation: y'-y=(1/2)x-1

  • false_alarm
  • · Replies 7 ·
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7

Graduate Solve Olimpiad Problem: Draw u(5,x) Graph

  • Mechmathian
  • · Replies 4 ·
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4

Undergrad Need help solving a Non-Homogenous DE

  • juice34
  • · Replies 1 ·
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1

Undergrad Numerical Solution to 2nd Order Eqn?

  • qspeechc
  • · Replies 6 ·
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6

Graduate Problem solving 2nd order ODE not for the faint of heart

  • robousy
  • · Replies 1 ·
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1

Graduate Solving a Partial Differential Equation

  • YongL
  • · Replies 2 ·
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2

Undergrad Implicit differentiation? implicit integration?

  • user01
  • · Replies 1 ·
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1

Undergrad Differential equation from general solution

  • Damidami
  • · Replies 4 ·
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4

Graduate Partial differential equation help

  • mousemouse
  • · Replies 1 ·
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1

Graduate Hypothesis for the separation of variables method

  • TeTeC
  • · Replies 7 ·
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7

Graduate How can you determine the direction of a phase portrait?

  • MathematicalPhysicist
  • · Replies 7 ·
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7

Graduate Parallelizing Crank-Nicolson method

  • wu_weidong
  • · Replies 3 ·
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3

Can PDFs Reduce Virus Risks in Chemistry Research Collaboration?

  • YongL
  • · Replies 1 ·
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1

Undergrad How do I solve a differential equation with the given initial condition?

  • Mitchtwitchita
  • · Replies 12 ·
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12

Graduate Can the Riccati equation \(y' + y^2 = x\) be solved?

  • gamesguru
  • · Replies 2 ·
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2

Graduate Initial condition leads to periodic solution

  • mmnoname
  • · Replies 2 ·
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2

Undergrad Solution to Initial Value Problem: dy/dx = y-3, y(0)=4

  • Mitchtwitchita
  • · Replies 3 ·
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3

Undergrad Solving an Initial Value Problem Using Euler's Method

  • Mitchtwitchita
  • · Replies 2 ·
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2

Graduate Proving the Existence and Uniqueness Theorem for Differential Equations

  • sutupidmath
  • · Replies 2 ·
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2

Undergrad Laplace Transform f(t) = e^t *sin(t)sin(5t)

  • tim_3491
  • · Replies 1 ·
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1

Graduate How to Solve This Complex Differential Equation?

  • Rajat
  • · Replies 1 ·
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1

Graduate Is y(t) = c1t^2 + c2 t^−1 the general solution of a second order ODE?

  • Tom1
  • · Replies 3 ·
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3

Graduate Solve Hermite Equation & Find Its Use in Math Physics

  • darkone1687
  • · Replies 3 ·
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3

Undergrad Solution of a simple Differential Equation

  • gabrown
  • · Replies 5 ·
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5

Graduate What is the relation between Riccati equations and Bessel equations?

  • tucuman87
  • · Replies 13 ·
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13

Undergrad What is fx(0,1) in Partial Differentiation for f(x,y)=2e^(x^2y)?

  • Mitchtwitchita
  • · Replies 5 ·
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5

Undergrad Need help for one math question

  • wowolala
  • · Replies 2 ·
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2

Graduate Diff. eqn + erf (error function)

  • veronik
  • · Replies 11 ·
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11

Undergrad Help with Wronskians and matricies?

  • hxtasy
  • · Replies 2 ·
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2

Graduate How to solve a Nonhomogeneous differential equation with natural log?

  • asourpatchkid
  • · Replies 4 ·
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4

Graduate Finding the Limit of F(s) as s Goes to Infinity: Exploring Exponential Order

  • shapiro478
  • · Replies 1 ·
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1

Graduate How to Solve the Heat Equation with Neumann Boundary Conditions?

  • johan_ekh
  • · Replies 2 ·
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2

Graduate Uses of Laguerre Differential Equ.

  • almoneal
  • · Replies 2 ·
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2

Graduate How is exp(tL) rigorously defined in Duhamel's formula?

  • Yugo
  • · Replies 5 ·
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5

Graduate Solving Shallow Water Equations with Kelvin Wave Solutions

  • groovayness
  • · Replies 1 ·
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1

Graduate Is Separation of Variables Valid for Solving Partial Differential Equations?

  • captain
  • · Replies 3 ·
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3

Undergrad How do you solve this nonlinear first order DE

  • kingkongsr.
  • · Replies 13 ·
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13

Graduate How to Solve the Central Force Equation with a Cubic Potential?

  • omni-impotent
  • · Replies 7 ·
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7

Graduate Solve Bernoulli Equation x'=b(t)x+c(t)x^n when n<0

  • The|M|onster
  • · Replies 2 ·
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2

Graduate Solving ODE: $\dot{r}=\sqrt{\frac{a}{r}+b}$

  • NoobixCube
  • · Replies 1 ·
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1

Graduate How can Euler differential equations be solved using a substitution?

  • sutupidmath
  • · Replies 6 ·
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6

Graduate Fundamental Matrices in Differential Equations

  • rocketboy
  • · Replies 1 ·
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1

Undergrad Learn How to Integrate dy/dx=4x-2y with Expert Tips - Solve D.E.

  • coffeebean51
  • · Replies 2 ·
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2

Graduate Solving non-linear equations simultaneously with DE's using Euler integration

  • Jigby
  • · Replies 5 ·
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5

Graduate Laplace Cylindrical Coordinates (Separation of variables)

  • phioder
  • · Replies 2 ·
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2

Graduate Biharmonic Operator: Understanding PDEs for Smooth Meshes

  • shalayka
  • · Replies 1 ·
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1

Undergrad Domain of a Differential Equation

  • altcmdesc
  • · Replies 4 ·
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4

Undergrad How Do You Solve dy/dt = t - y and Its Variations?

  • msimmons
  • · Replies 3 ·
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3

Graduate Serious problem about Differential equation

  • kthouz
  • · Replies 2 ·
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2

Undergrad Nonseparable Differential Equation

  • altcmdesc
  • · Replies 7 ·
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7

Graduate Is there a theory for infinite dimensional PDEs?

  • jostpuur
  • · Replies 3 ·
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3

Graduate System of coupled first order PDE

  • blue2script
  • · Replies 1 ·
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1

Graduate Solving a Non-Linear Differential Equation Using Exact Equations

  • Tom1
  • · Replies 5 ·
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5

Undergrad Need Help Solving a Differential Equation?

  • sutupidmath
  • · Replies 9 ·
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9

Graduate Can Fourier Series Help Solve this Summation Question?

  • koolrizi
  • · Replies 6 ·
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6

Graduate Build logistic differential equation for given data

  • killer2008
  • · Replies 5 ·
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5

Graduate What Are the Conditions for Uniqueness in Nonlinear Differential Systems?

  • LeBrad
  • · Replies 4 ·
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4

Graduate How to Implement Constant C in the Split Step Fourier Method for NLS Equations?

  • hanson
  • · Replies 1 ·
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1

Undergrad Difference in differential and partial differential

  • bassplayer142
  • · Replies 5 ·
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5

Undergrad Help with first order, Bernoulli ODE

  • scorpion990
  • · Replies 7 ·
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7

Undergrad How Do You Approach Reduction of Order for This Differential Equation?

  • Matt Jacques
  • · Replies 11 ·
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11

Graduate Differential Equations - Bifurcations

  • torresmido
  • · Replies 2 ·
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2

Graduate Bessel Functions / Eigenvalues / Heat Equation

  • phioder
  • · Replies 23 ·
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23

Graduate Understanding Phase Curves and Directionality in ODE Systems

  • MathematicalPhysicist
  • · Replies 5 ·
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5

High School Where can I find helpful resources for solving differential equations?

  • kthouz
  • · Replies 1 ·
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1

Undergrad Help creating a dif. eq. for a real life model?

  • sutupidmath
  • · Replies 9 ·
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9

Undergrad Euler expansion of double exponential?

  • Clifford
  • · Replies 1 ·
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1

Graduate How Do GR Equations of Motion Describe Singularities in 4D Space-Time?

  • Mentz114
  • · Replies 4 ·
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4

Undergrad Differential equation involving money

  • angelgurlxo87
  • · Replies 1 ·
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1

Graduate Gradient Ascent: Finding Maximum of a Scalar Function

  • gaganaut
  • · Replies 2 ·
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2

Graduate How Do You Solve Integration Issues with Differential Equations?

  • PPapadopoulos
  • · Replies 4 ·
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4

Graduate How to Find Two Linearly Independent Solutions of (y' + f(x)y)' = 0?

  • shapiro478
  • · Replies 2 ·
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2

Undergrad How to Solve Implicit Differentiation Problems with Tan(xy)=xy?

  • blader324
  • · Replies 2 ·
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2

Graduate Parametric equation for a cycloid

  • yuiop
  • · Replies 3 ·
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3

Graduate From 1D to cylindrical co-ordinates in PDEs

  • gareth
  • · Replies 2 ·
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2

Graduate Solving Differential Equation with Boundary Conditions

  • germana2006
  • · Replies 5 ·
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5

Undergrad Homogeneous Equation: 5/2 Degree?

  • coffeebean51
  • · Replies 3 ·
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3

Undergrad Non linear diff. equation example

  • bob j
  • · Replies 3 ·
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3

Graduate How Is Virga Raindrop Evaporation Time Calculated Using Differential Equations?

  • pociteh
  • · Replies 2 ·
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2

Graduate Fick's second law in cylindrical co-ordinates

  • gareth
  • · Replies 2 ·
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2

Graduate ATH: Solving Differential Equations for B(x) with Constraints and a Constant K

  • Mentz114
  • · Replies 7 ·
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7

Graduate How Do I Determine the Fourier Transform of f(x) = sin(x)?

  • ZeroScope
  • · Replies 3 ·
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3

Undergrad Applied example of Laplace Transform?

  • tabularasa
  • · Replies 7 ·
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7

Graduate How to Solve a Non-Homogeneous Laplace Equation?

  • reece
  • · Replies 1 ·
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1

Undergrad Understanding Laplace Transformations: A Practical Guide and Real-Life Examples

  • tabularasa
  • · Replies 2 ·
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2

Undergrad Boundary-value problems (Neumann condition)

  • phioder
  • · Replies 2 ·
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2

Undergrad Undetermined coefficients vs. Variation of Parameters

  • Sparky_
  • · Replies 2 ·
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2

Undergrad A restriction within Variation of Parameters

  • Sparky_
  • · Replies 1 ·
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1

Graduate Differential Equation Solutions - y'' = -y & y' = y

  • snipez90
  • · Replies 4 ·
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4

Graduate Is the Homogeneous Solution Neglected in Undamped Harmonic Oscillators?

  • LydiaAC
  • · Replies 4 ·
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4

Graduate Show Real Part of Complex Numbers: |y + x|^2 = |y|^2+2|yx|cos(a1-a2)

  • diewlasing
  • · Replies 2 ·
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2

Graduate Complex Ginzburg Landau Equation

  • hanson
  • · Replies 2 ·
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2

Graduate About partial differential equation book

  • rezwan
  • · Replies 1 ·
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1

Graduate Numerical methods: Finite difference and spectral methods?

  • hanson
  • · Replies 1 ·
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1