How can I fix the "Subscript indices must either be real positive integers or logicals." I am getting the errors my j(k) and l(k). my program works when I change the range but i only get ending term, any point in the right direction would be helpfu
1 view (last 30 days)
Show older comments
Janvier Solaris
on 27 Sep 2017
Commented: Janvier Solaris
on 27 Sep 2017
z(1) = 1.5;
for k = 1:6
fprintf('%d %5.8f %5.8f %5.8f\n',n , z(k), e(k), p(k));
z(k+1) = (.5)*z(k) + sqrt(2)/2*z(k);
x(k) = z(k+1);
e(k) = z(k+1) - sqrt(2);
j(k)= log((e(k))/log(e(k-1)));
l(k)= log(e(k-1))/log(e(k-2));
p(k) = j(k)/l(k);
end
Accepted Answer
Robert U
on 27 Sep 2017
Edited: Robert U
on 27 Sep 2017
Hi Janvier Solaris,
the main problem despite of posting non-executable code is the reference to e(k-2) for l(k) calculation. Since indices have to a positive integers or logicals it will not work for k <= 2. That code snippet does:
z(1) = 1.5;
for k = 1:6
z(k+1) = (.5)*z(k) + sqrt(2)/2*z(k);
x(k) = z(k+1);
e(k) = z(k+1) - sqrt(2);
if k > 2
j(k)= log((e(k))/log(e(k-1)));
l(k)= log(e(k-1))/log(e(k-2));
p(k) = j(k)/l(k);
fprintf('%d %5.8f %5.8f %5.8f\n',k , z(k), e(k), p(k));
end
end
Kind regards,
Robert
More Answers (0)
See Also
Categories
Find more on Develop Apps Using App Designer in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!