Sum in a loop
显示 更早的评论
Please someone could help me how to do this in a loop; I am kind of begginer in Matlab:
3 个评论
Walter Roberson
2016-9-13
Is U superscript arrow subscript j a function or a vector?
Chad Greene
2016-9-13
What have you tried so far?
Miguel L
2016-9-13
采纳的回答
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
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息
Translated by 
