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how to use for loop for iterations in matrices?

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Tariq Ullah
Tariq Ullah on 20 Aug 2021
Edited: Stephen on 20 Aug 2021
Hello, how can I use for loop for these operations?
let x1= rand(5,3);
and x2= rand(5,3);
also, A1=x2*pinv(x1);
Now, I want to use A1 and x2 to get X3, i.e
x3=A1*x2;
and then,
A2=x3*pinv(x2);
x4=A2*x3; and so on.
I want to get the final X matrix after 10 iterations using for loop. i.e x10.
Thank you

Accepted Answer

Stephen
Stephen on 20 Aug 2021
Edited: Stephen on 20 Aug 2021
"how to use for loop for iterations in matrices?"
Do NOT number the variable names, unless you want to force yourself into writing slow, complex, inefficient code.
Use a cell array instead, with indexing, e.g.:
C = {rand(5,3),rand(5,3)};
for k = 3:10
A = C{k-1} * pinv(C{k-2});
C{k} = A * C{k-1};
end
M = C{10}
M = 5×3
0.0237 0.0329 0.0283 0.0242 0.0348 0.0300 0.0154 0.0228 0.0197 0.0195 0.0275 0.0236 0.0397 0.0558 0.0480

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