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Sum in a loop

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Miguel L
Miguel L 2016-9-13
评论： Miguel L 2016-9-13
Please someone could help me how to do this in a loop; I am kind of begginer in Matlab:
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Chad Greene
Chad Greene 2016-9-13
What have you tried so far?
Miguel L
Miguel L 2016-9-13
U is avector

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John BG
John BG 2016-9-13
Hi Miguel
with no further information the following does what you ask for
U=randi([-10 10],1,10)
=
7.00 9.00 -8.00 9.00 3.00 -8.00 -5.00 1.00 10.00 10.00
Select a p such is smaller that at least length(U)-1, for instance
p=3
the limit for the sum is
L=length(U)-p
L =
7.00
and now let's calculate S
S=zeros(1,L);
for k=1:1:L
S(k)=sum(U([1:k+p]));
end
17.00 20.00 12.00 7.00 8.00 18.00 28.00
Since T does not show the vector arrow I understand it's a scalar, so to complete just multiply
S=T*S
If T is a vector, then you could either multiply element by element with
S=T.*S
provided T and S have same size
Miguel
if you find this answer useful would you please be so kind to mark my answer as Accepted Answer?
if you consider there is need for further clarification before you mark my answer as accepted do not hesitate to let me know what else would be required.
To any other reader, please if you find this answer of any help solving your question,
please click on the thumbs-up vote link,
thanks in advance
John BG
<mailto:jgb2012@sky.com jgb2012@sky.com>

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