For loop and indexing combined?
2 views (last 30 days)
Show older comments
I think I'm nearly there with this code.
close all;
clear all;
l=0.33;R=100;T=68;m=0.000125;w0=0.1;t=0;mu=m/l;c=sqrt(T/mu);r=2;x0=l/r;
x=linspace(0,0.33,10)
iter=1;
for n=1:5000;
wxt=((4*w0)/pi)*exp(-R*t)*((l/(pi*n^2*x0))*sin((n*pi*x0)/l))*sin((n*pi*x(1))/l)*cos((c*n*pi*t)/l);
wxtrec(n)=wxt;
iter=iter+1;
end
w=sum(wxtrec)
What I actually want is for the code to repeat for each value of x - instead of just for the first indexed value - x(1) - as it is now.
Right now, w, is correct for x(1). Is it possible to set up a new outer for loop, which uses subsequent values of x ie. x(1), x(2) etc. instead of just using x=1,2,3,4..?
0 Comments
Accepted Answer
Walter Roberson
on 10 Jan 2012
Yes, you had a suitable nested loop in one of your previous versions of this code.
Note: you never use iter so you might as well get rid of it.
0 Comments
More Answers (1)
Tom
on 10 Jan 2012
1 Comment
Walter Roberson
on 10 Jan 2012
The .' is transpose, converting the row vector (1:5000) in to a column vector.
bsxfun is the Binary Scalar Expansion Function routine; see your documentation.
@times is a function handle to the built-in element-by-element multiplication routine more commonly known as .*
For animation, please see http://www.mathworks.com/help/techdoc/creating_plots/f10-1460.html
See Also
Categories
Find more on Matrix Indexing in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!