Creating a loop for matrix multiplication
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Hi. I am trying to create a loop to multiply two matricies 40 times such that A*B0=B1 and A*B1=B2 and so on. So far I have got this
%
a=1-0.0277;
b=(1/15)*(1-0.008);
c=0.0215*a;
d=(14/15)*(1-0.008);
A=[[a,b];[c,d]];
B0=[6820;2140];
B=[B0];
for j=1:40
B1=A*B0;
B0=B1;
B=[B;B1];
disp(round(B(j)))
end
plot(B)
It does work but the result comes up as a list of all the values together and I want it to be a in a 1x2 matrix format.
Can anyone help? Thank you
5 Comments
John D'Errico
on 12 May 2014
NO NO NO NO. Do not create 81 different named variables. Learn to use arrays of variables. Your code will be the better for it. Your mental health a bit better too, because your code will not drive you crazy.
Answers (1)
Wojtek
on 13 May 2014
1 Comment
Jos (10584)
on 13 May 2014
for i=1:41,
C = [C B(2*i-1:2*i)]
end
is exactly the same as
C = B(1:82)
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