1
vote
1answer
89 views

How to adjust parameters to experimental data on a NDSolve problem

I have 2 differential equations with 2 variables, x and y,which are a function of t and I have the parameters k1, k2 y k3. ...
0
votes
0answers
70 views

FindFit and NIntegrate with dependency between integration variables

I am trying to use FindFit and NIntegrate in this situation: ...
-1
votes
1answer
57 views

FindFit and Integration errors

First off, appologies for what may sound like a newbie question, as I am very new to using Mathematica. I am trying to find a way to get Mathematica to give me an expression that would describe the ...
0
votes
1answer
174 views

Problem with NIntegrate in NonlinearModelFit

We are receiving many error messages when using NIntegrate with NonlinearModelFit. Here is a much-simplified version of the code. It arrives at the correct answer after several messages saying that it ...
1
vote
0answers
166 views

fit using parametric equations

I have experimental data with two columns (x & y). I need to fit the data to two parametric equations of the form $$y =\text{const}_1 \times \left( \frac{\int _a^{b}\sqrt{\frac{\left( 1+\gamma ...
5
votes
2answers
232 views

How to find Matano plane

I have discrete collection of data points (10 to 10^4). I want to describe them by a continuous function and find a x value z, ...