how to sum a 9 matrice in a for loop ?

i have a 9 matrice (7 8 9;2 1 4; 5 6 3) and i have to write a code in a for loop that gives me the answer to the sum of all 9 numbers

[Erivelton Gualter]

Do you means, you want the sum of all the values for a given matrix (for example, (7 8 9;2 1 4; 5 6 3)) ?

[Nina Nina]

yes, i need a code written in a for loop that when you give it a 9 matrice it gives you the sum of all numbers for example you give it the matrice above and it gives you 45 (the sum of those numbers)

Answer 1

[KALYAN ACHARJYA]

"May the question is: how to sum a 9 matrices elements in a for loop?"

No need of loop, here mat is given matrix

result=sum(mat(:))

Must be loop have to use, then,

Hints:

for i=1:r 
for j=1:col
sum_mat=sum_mat+mat(i,j);
end 
end 

[Nina Nina]

its a school assignment where i must use a for loop

[KALYAN ACHARJYA]

Then Hints are sufficient, I will not tell you more. Please read Matlab documentation.