Advanced Search

Physikuss

0 Reputation

2 Badges

14 years, 51 days
Contact Physikuss

MaplePrimes Activity


These are questions asked by Physikuss

Non-linear fit problem...

Physikuss 0 Maple 12
June 14 2011
2 2

Hello,

I want to fit Data with a model that calculates the values by solving an ODE numerically.

solL:=dsolve({Lpde,ICS}, numeric, method=rkf45, parameters=[lambda[0],T[m]]);

Next, I created a procedure.

ans:=proc(p1,p2) solL(parameters=[p1,p2]); rhs(solL(3600)[2]); end proc;

This is giving a length L(t) depending on parameters lambda[0] and T[m]. I would like to fit this model with my data. These data are given for a fixed time...

Fitting Data with an Implicit Model, e.g...

Physikuss 0 Maple
June 09 2011
1 0

Hi, I would like to fit my data with a physical model. Unfortunately, I have the model in the form of an ODE which can be solved numerically only. So made a procedure output as follows:

solL:=dsolve({Lpde,ICS}, numeric, method=rkf45, output=listprocedure, parameters=[lambda[0],T[m]]);

Page 1 of 1