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From: "Yi" <hvachy@163.com>
Newsgroups: comp.soft-sys.matlab
Subject: fix point iteration
Date: Sat, 25 Apr 2009 17:37:02 +0000 (UTC)
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Dear friend:

I want to plot a curve, x is my independent value, and y is the dependent value. 

But I have

y = f1(a,b,x)
a = g1(a,b,x)
b = g2(a,b,x)

I want to assume the x value in a reasonable interval and then use fix point iteration to solve a and b first, using function a and b. Then drive these a and b and x(assumption) into y and then plot the curve. 

I don't know how to solve a and b. Which command should I use? 

Thanks & Best Regards

Yi