Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.


Laura
Posts:
1
Registered:
4/25/13


Iterative Procedure Using Vectors
Posted:
Apr 25, 2013 1:56 PM


I have been told to carry out the following iterative procedure: a) Set a vector v to be the vector [1 ; 0] b) Find a new vector u = Av (where A is a 2 x 2 real matrix) c) Find the magnitude of this new vector u, and call this magnitude c d) Divide u by c e) Set v to be this unit vector, then repeat steps b) to e) a number of times.
So far I have tried: v(1) = [1 ; 0] for n = 1:100 u(n) = A*v(n+1) c(n) = norm(u(n)) v(n+1) = u(n)/c(n) end
However, it doesn't seem to like the v(1) part and keeps saying submatrix error, probably because it thinks that I am referring to the first element in the vector instead of saying v = [1 ; 0] is the initial condition. Does anyone know how I can do this? Also I'm not sure if the rest of it works ...



