I'm multiplying 2 3x3 matrices and the answer is displaying as a 1x9, how can i fix this?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Terry Poole
le 8 Oct 2018
Commenté : Star Strider
le 8 Oct 2018
A=[0.4 0.1 0.2;0.3 0.7 0.7;0.3 0.2 0.1];
b=[0.4 0.1 0.2;0.3 0.7 0.7;0.3 0.2 0.1];
for i = 1:40
b = A*b;
fprintf('i=%3d b=[',i);
for j = 1:9
fprintf('%12.6f',b(j));
end
fprintf(']\n');
end
0 commentaires
Réponse acceptée
Star Strider
le 8 Oct 2018
Your code is printing what you told it to print.
Try this:
A=[0.4 0.1 0.2;0.3 0.7 0.7;0.3 0.2 0.1];
b=[0.4 0.1 0.2;0.3 0.7 0.7;0.3 0.2 0.1];
for i = 1:40
b = A*b;
fprintf('i=%3d b=[',i);
fprintf('%12.6f %12.6f %12.6f\n%12.6f %12.6f %12.6f\n%12.6f %12.6f %12.6f',b');
fprintf(']\n');
end
2 commentaires
Star Strider
le 8 Oct 2018
As always, my pleasure!
No apologies necessary. We were all new to MATLAB (and to programming in general) at one point in our lives. We’re all still learning.
The solution is in understanding how fprintf (and sprintf) intrepret matrix arguments. It’s worthwhile experimenting with it when time permits.
It is quite understandable that you would consider the need to subscript your matrix so it prints the way you want it to, however since you have already defined your matrix, printing it is relatively straightforward.
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Logical dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!