Recent content by oliverroth

I just want to have a simple measure for the uncertainty of the fit. I am actually just interested in one of the 2 parameters and I want to have something like a1 = xx ± error. I have to calculate e^2 anyway and so I thought, I could use it for this purpose. But it doesn’t even have the same...

Hi, I have some experimental data as a function of time t and temperature T. I have done a least squares fit of the data with a function f=f(a1,a2,t,T) (the function is non linear in a1 and a2!). Optimization of e^2 = sum((yi-f(a1,a2,ti,Ti)^2) with Matlab's fminsearch gave me a1, a2 and the...

Ok. Thank you.

Thanx a lot. This matches qualitatively (although it still sounds odd to me). Can you tell me how you have derived this result?

Hi, I tried to make some simulations of two conducting spheres in a constant electric field. The simulations seem to indicate that the electric field in the gap increases with increasing diameter of the spheres at a constant gap distance. Does this make sense? I expected just the reverse. What...