Help with element manipulation of matrix
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Matthew Lozancich
le 12 Nov 2017
Modifié(e) : Walter Roberson
le 12 Nov 2017
So the question I have been asked to do is:
Write a function called digit_compare.m which takes as input two 28 × 28 matrices, and returns the sum of the squares of the differences between the corresponding elements.
Here is what I have done so far. What did I do wrong?
function sum=digit_compare(X,Z)
X=zeros(28);
Z=zeros(28);
n=0;
sum=0;
for i=[1:28]
for j=[1:28]
n=((X(i,j))-(Z(i,j))).^2;
sum=sum+n;
end
end
end
0 commentaires
Réponse acceptée
Walter Roberson
le 12 Nov 2017
Modifié(e) : Walter Roberson
le 12 Nov 2017
You did not take into account the possibility that the inputs might be unsigned integers. When you subtract a larger unsigned integer from a smaller unsigned integer, the result is 0 rather than a negative number.
Also, you overwrite all user-provided inputs with zeros.
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Startup and Shutdown 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!