Community Profile

# Pascal Schulthess

### Leiden University

10 total contributions since 2010

View details...

Contributions in
View by

Question

Estimate parameter for ODE with events
Hi, I currently have an ODE that can only be solved by using events. How would I estimate parameters of such an ODE from expe...

2 months ago | 0 answers | 0

### 0

Question

Heaviside function in ODE
I have the following set of ODEs dxdt(1) = -ka*x(1); dxdt(2) = ka/V*x(1) - ke*x(2); dxdt(3) = -a1*exp(-b1*x(3)).*x(3)...

3 months ago | 1 answer | 0

### 1

Question

OS X JxBrowser AWT-AppKit Thread Window
Hi everyone, recently I discovered an empty "window" titled JxBrowser AWT-AppKit Thread Window when I call the OS X App Expos...

5 years ago | 0 answers | 0

### 0

Randomly delete elements of a matrix
Thanks for the quick answers. Maybe I do need to clarify: Let's say I have a 3x4 matrix which looks like: x x x x x x x...

5 years ago | 0

Question

Randomly delete elements of a matrix
Hi guys, how would you, if you have an arbitrary matrix, randomly delete one element in each row and column of said matrix. ...

5 years ago | 4 answers | 0

### 4

Question

Selectively set parameters to fit to 0 in lsqnonlin
Hi everyone, I was wondering if there's a more elegant and less computing-time consuming way to implement the following probl...

5 years ago | 1 answer | 0

### 1

Slow convergence of lsqnonlin
Alright, I figured out how to speed up the calculation of the objective function immensely. By breaking it down into matrices an...

5 years ago | 0

| accepted

Question

Slow convergence of lsqnonlin
Hi everyone, I have a convergence problem with lsqnonlin and I hope that someone can help me speed it up. Ok, so what do I...

5 years ago | 2 answers | 0