sum all columns in a matrix
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hi,
i want to sum all the columns of some matrix.
but without using a loop or the sum function.
for ex:
for the matrix [1 3 2; 4 4 8]
i will recive [5 7 10]
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Answers (2)
Maneet Kaur Bagga
on 5 Jul 2022
As per my understanding you want to get the sum of the matrix coloumn wise so you can use the MATLAB sum function. All the MATLAB functions by default work on coloumn so you get the sum directly. You can refer to the code below. Hope it helps!
x = [1 3 2; 4 4 8]
sum(x)
2 Comments
DGM
on 5 Jul 2022
In any practical scenario, using sum() would be perfectly sensible, but OP was working around contrived limitations -- no loops and no sum().
Maneet Kaur Bagga
on 5 Jul 2022
You can refer to the below code as a solution.
x1 = [1 2 3; 4 5 6; 7 8 9];
all =(x1);
sumcol=0;
for i=1:length(all)
sumcol = 0;
for j = 1:length(all)
sumcol = sumcol + all(j,i);
end
fprintf("%d ",sumcol);
end
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