how to sum array
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A=[1 4 5 10 9 3 2 6 8 4]
B=[1 7 3 4 1 10 5 4 7 4]
fRow = B+A(1);
sRow = B+A(2);
tRow = B+A(3);
foRow = B+A(4);
fiRow = B+A(5);
siRow = B+A(6);
seRow = B+A(7);
eRow = B+A(8);
nRow = B+A(9);
teRow = B+A(10);
ans = [fRow; sRow; tRow; foRow; fiRow; siRow; seRow; eRow; nRow; teRow]
please i need help with this, how can i write the code to solve the answer if A and B array length is the diffrent from my own array length
Let say A and B will have to be inputted by the user, and the array Length of A and B inputted by the user is less or greater than 10, how will my code solve that.
This is the output
ans =
2 8 4 5 2 11 6 5 8 5
5 11 7 8 5 14 9 8 11 8
6 12 8 9 6 15 10 9 12 9
11 17 13 14 11 20 15 14 17 14
10 16 12 13 10 19 14 13 16 13
4 10 6 7 4 13 8 7 10 7
3 9 5 6 3 12 7 6 9 6
7 13 9 10 7 16 11 10 13 10
9 15 11 12 9 18 13 12 15 12
5 11 7 8 5 14 9 8 11 8
ans =
12
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Answers (2)
David Hill
on 6 Aug 2021
B'+A;
7 Comments
DGM
on 6 Aug 2021
Edited: DGM
on 6 Aug 2021
I don't know why you're trying to do this with a loop. For the example you gave, no loops are necessary as we've demonstrated.
This has its own problems:
aLenght = length(A); % this isn't used for anything
C = 1;
while(C <= i) % C is a positive, real integer. it can never be <= sqrt(-1)
u=A(C)+B % this gets overwritten each time
C=C+1;
end
If for some reason (e.g. homework assignment stipulation) you must use a loop, use a for loop instead. If you know the number of iterations beforehand, there's little point dealing with the hazards of a while loop.
Image Analyst
on 6 Aug 2021
Here is an alternative way using the repmat() function to explicitly turn A and B into 2-D matrices before adding them together:
A=[1 4 5 10 9 3 2 6 8 4]
B=[1 7 3 4 1 10 5 4 7 4]
A2 = repmat(A', 1, length(B))
B2 = repmat(B, length(B), 1)
C = A2 + B2;
It gives the same result as your "ans" and can handle any length of A and B, as long as they're the same of course
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