Hi Folks,
So I'm trying to create my own version of a continuous least squares. Here's a picture of what I'm attempting to do.. (these notes were taken in class, the integrals should be attached to all elements of the matrix, sorry)
I figured I would approach this problem by creating the first row of my matrix which was coded as
syms('x','a','b','n')
f = sqrt(x);
A = [int(x.^(n),a,b) int(x.^(n+1),a,b) int(x.^(n+2),a,b)];
b = [int(x.^(n)*f,a,b) int(x.^(n+1)*f,a,b) int(x.^(n+2)*f,a,b)];
N = 2;
And tested with n=0, which gave me the results I wanted. Now to use a for loop to create the rest of the matrix. I want n grow by 1 for each loop until I hit N, and I also want to add another row to my matrix each time my n goes up. I'm a simple man and figured the following code would work, but I keep getting the error:
Index exceeds matrix dimensions.
Error in sym/subsref (line 814) R_tilde = builtin('subsref',L_tilde,Idx);
when I run this
for i=1:N
A(i,:) A(i+1,:);
n = n+1;
end
Any advice, tips, tricks, etc would be appreciated!
