adding some single elements in matrix

Question

Noriham B 2022-7-29

评论： Noriham B 2022-7-29

Dear Prof/Dr./Sir./Maam

I have matrix A=[1 2 3 4 5] and B=[ 6 7 8 9]. I want to calculate s1=1+2+6 s2=2+3+7 s3=3+4+8 s4=4+5+9.

Is it possible to calculate the elements from different matrix like that?

Thank you in advance

Answer 1

sudobash 2022-7-29

Hi!

So as per my understanding, 2 consecutive elements of A need to be added and the resulting vector needs to be added to B.

A possible solution could be like this:

A=[1 2 3 4 5];
B=[ 6 7 8 9];
Asum = A(2:end) + A(1:end-1)
Asum = 1×4
     3     5     7     9
final = Asum + B
final = 1×4
     9    12    15    18

Hope this solves your question.

Noriham B 2022-7-29

Great....so much thanks to u prof/Dr/Sir...I can run the results now...really appreciate ur help