JeffR1992

Active since 2017

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atan2 breaking ode15s
I have a program that runs ode15s a few thousand times in order to find a particular solution. However, I'm getting many integra...

8 years ago | 1 answer | 0

1

answer

Question

ode15s, end if integration tolerance not met
I have a process that uses ode15s thousands of times to solve a system of differential equations with various initial conditions...

8 years ago | 0 answers | 0

0

answers

Question

Forward difference gradient vector in multiple dimensions
If I have a function of the form f = @(x) x.^2 then given a step-size h, I can use a forward difference given by ...

8 years ago | 1 answer | 0

1

answer

Question

Differential Equation Parameter Optimization with Free Time Parameter
I am trying to optimize 3 parameters in a system of differential equations using fminunc. The three parameters are theta0, theta...

8 years ago | 1 answer | 0

1

answer

Question

Applying multiple values to each (x,y) coordinate point in a 2D Cartesian coordinate system
I have a (3x1) vector V = (V1, V2, V3) and would like to assign these three values to each grid point in an (x,y) coordinate sys...

9 years ago | 1 answer | 0

1

answer

Answered
2D advection boundary conditions
Hi Torsten, thanks for your help, if you run the code and see the surface animation you'll see that those methods unfortunately ...

9 years ago | 0

Answered
2D advection boundary conditions
Unfortunately this does not seem to fix the boundary conditions, as they still act in the same strange way.

9 years ago | 0

Question

2D advection boundary conditions
I'm trying to produce a simple simulation of a two-dimensional advection equation, but am having trouble with applying periodic ...

9 years ago | 2 answers | 0

2

answers