Register to reply

FindFit with complex domains

by Littlepig
Tags: findfit, mathematica
Share this thread:
Littlepig
#1
Oct15-09, 05:32 AM
P: 100
Hi there

Suppose I have data of the format {x,y+i z} where x,y,z is real and i is the imaginary unit.

I'm trying to make a FindFit of some nasty model that, suppose for simplification is f(x) = a^b*x^2+exp(a)*b*i*x (domain is real, codomain is complex and a,b are Real) and can be written as f(x)= g(x) + i h(x). I want to FindFit to find "a" and "b" that makes f(x) best fit the data.

How can I do this? There is no way of constrain a and b to Real as FindFit don't allow that. Furthermore, it appears that FindFit don't accept imaginary data.

Thank you very much for your response
Phys.Org News Partner Science news on Phys.org
Law changed to allow 'unlocking' cellphones
Microsoft sues Samsung alleging contract breach
Best evidence yet for coronal heating theory detected by NASA sounding rocket

Register to reply

Related Discussions
Mathematica - FindFit with complex numbers Math & Science Software 4
Um, domains and ranges Calculus 1
What bracket is used to denote a number is excluded from a domain? General Math 2
Trying to determine domain of f(t)=4.5e^t General Math 7
Finding the maximum domains General Math 6