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Matthew Cassell's user avatar
Matthew Cassell's user avatar
Matthew Cassell's user avatar
Matthew Cassell
  • Member for 9 years, 7 months
  • Last seen this week
  • Sydney NSW, Australia
11 votes
Accepted

Using Lie-Trotter Integrators for solving PDEs

9 votes
Accepted

Zeros of a harmonic function

7 votes

Find the indefinite integral $\frac{x\sin x}{1+\cos^2 x}$

6 votes

Evaluating the indefinite integral $\int \frac {x^7-1}{\log x}dx$

5 votes
Accepted

How to solve the following nonlinear partial differential equation ?

5 votes
Accepted

Finding Fourier transform of inverse polynomial

5 votes
Accepted

Implicit and Explicit ODE

5 votes
Accepted

Forward Euler PDE (grid method) misunderstanding - Is the question missing a detail

5 votes
Accepted

Find the Fourier transform of $\frac1{1+t^2}$

4 votes
Accepted

Problem with evaluating the exact value of an integral

4 votes
Accepted

Partial differential equation question: $UU_{x}=(U+1)U_{t}$

4 votes

PDE with inhomogeneous term $u_t + xu_x = x^2$

4 votes

How to solve a Partial Differential Equation

4 votes
Accepted

Help solving shallow water equations initial value problem?

4 votes
Accepted

Solving $\int_{0}^{\infty} xe^{-cx^{2}} \sin(tx) \ dx$

4 votes
Accepted

Flow of a vector field $f(x,y)=(x,-y+x^2)$

3 votes
Accepted

Solution to ODE using Power Series

3 votes

Analyze : $u_t-u^2u_x +cu =0, u(x,0)=g(x)$

3 votes

Proving that an integral is differentiable

3 votes
Accepted

Stability Region for 2nd order Multi-Step Methods

3 votes

How to calculate the sum of digits of $2^n$?

3 votes

Integration problem: $\int x^{2} -x 4^{-x^{2}} dx$

2 votes
Accepted

Solve for $y''+2y'+y = \frac{e^{-t}}{t^{2}}$

2 votes
Accepted

Separation of Variables vs Fourier Transform (for PDE)

2 votes

Solve a very simple first order ODE in the form of an integral using Laplace Transforms. (5.4-5)

2 votes
Accepted

Fourier Transform - Laplace Transform - Which variable transform?

2 votes

System of differential equations, compute value

2 votes
Accepted

Solving the functional $\min \int_0^1y^2y'^2\;dx,\;y(0)=0,\;y(1)=1$

2 votes
Accepted

Solving a differential equation $F-y'F_{y'}=C$, with $F(y,y')= \frac{1+2y'^2}{3y^3\sqrt{1+y'^2}}$

2 votes
Accepted

Rate of change taylor series

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