## Plotting Iteractive function

General discussion about Mathematica features and functionality...
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### Plotting Iteractive function

Does anybody knows how to make a program in Mathematica for plotting y_n versus x_n. (x_n,y_n) is solution of f(x_n,y_n)=0.
Initially we know y_1=0 and x_1 such that f(x_1,y_1)=0
after that, for a given y_n, x_n=FindRoot[ f(x,y_n), with initial guess x=x_(n-1) ]
The caulculus is made iteratively from n=1 to 100 (for example), resulting in a curve (x_n,y_n) . f(x,y) could be for example Sin[x-y-2] and for y_1=0 we have x_1=2. And y_n=n-1

I am just starting in Mathematica and I would like to show this tu my pupils (Electrical Engineering undergraduate students) . THANKS, Descardeci

descardeci

Posts: 1
Joined: Wed Apr 21, 2010 9:26 pm
Organization: Federal University of Tocantins - UFT , Brazil
Department: Electrical Engineering

### Re: Plotting Iteractive function

Descardeci,

You can create a list of f(x,y) values using the RecurrenceTable function, and then use ListPlot3D to visualize the results. There's an example of this approach in the "Neat Examples" section of the documentation for RecurrenceTable, which can be found here:
http://reference.wolfram.com/mathematic ... #568697427

I hope that helps!

-Michael

Michael_Morrison

Posts: 42
Joined: Fri Sep 11, 2009 9:50 pm
Organization: Wolfram Research, Inc.