Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum: 'coupled iterated map' topicStudent Support Forum > General > "coupled iterated map"

Next Comment >Help | Reply To Topic
Author Comment/Response
RJ Erwin
11/19/01 11:41pm

I guess this is pretty simplistic, but I've just started using Mathematica and I'll be darned if I can figure this out . . .

i'm trying to evaluate two coupled iterated map functions:

y[n_+1]:=y[n+1]=y[n]-.001*x[n]-.001;

x[n_+1]:=x[n+1]=a/(1+(x[n]^2))+y[n];

x[0]=-2;

y[0]=-4;

(where a = constant), and then store the output, over, say, 1000 iterations, in a list. This is really easy to do with Excel, and I was originally hoping to import that data into Mathematica, but I can't come up with any way to do that either. Anyway, how should the functions be defined so that I can do this?

When importing stuff (data on separate lines in a text file), I tried to say:

ReadList["alpha.txt", Number, RecordLists -> True]

and also the Import version, but I kept getting a message saying the file couldn't be found. What's wrong? Thanks.


URL: ,

Subject (listing for 'coupled iterated map')
Author Date Posted
coupled iterated map RJ Erwin 11/19/01 11:41pm
Re: coupled iterated map Henry Lamb 11/22/01 02:36am
Re: coupled iterated map Forum Modera... 11/22/01 07:19am
Next Comment >Help | Reply To Topic