Sum in a loop

2 次查看（过去 30 天）
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:
  3 个评论
显示 1更早的评论
Chad Greene
Chad Greene 2016-9-13
What have you tried so far?
Miguel L
Miguel L 2016-9-13
U is avector

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

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>

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by