试用软件

How to calculate sum of all the possible combinations of two vector elements

25 次查看（过去 30 天）

显示更早的评论

Davoud 2019-2-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/445609-how-to-calculate-sum-of-all-the-possible-combinations-of-two-vector-elements

评论： Ethan Duckworth 2024-2-24

采纳的回答： Andrei Bobrov

I have two vectors A and B with different lengths. The B vector always have 4 elements. How can I obtain the vector C containing sum of all the possible combinations of elements of B vector with A.

For example B= [1 2 3 4] and A= [0.1 0.2 0.3 0.4 0.5 0.6]

Then C= [1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 2.4 2.5 2.6 3.1 3.2 3.3 3.4 3.5 3.6 4.1 4.2 4.3 4.4 4.5 4.6]

Thank you

2 个评论
显示无隐藏无

Jon Wieser 2019-2-18

C=[B+A(:)]';

C=reshape(C,1,numel(C));

Davoud 2019-2-19

It seems it doesn't work for my case of A=[0.0000 + 0.0000i -0.2689+0.6342i 0.2689+0.6342i 0.0000+1.2685i] and B=[0.0000+0.0000i 0.1404 + 0.5011i -0.1404+0.5011i 0.0000+1.0021i]. In each iteration B is otained from a matrix as B=D(:,i).

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Andrei Bobrov 2019-2-19

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/445609-how-to-calculate-sum-of-all-the-possible-combinations-of-two-vector-elements#answer_361697

log(kron(exp(B),exp(A)))

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Ethan Duckworth 2024-2-24

that's kind of amazing

请先登录，再进行评论。

更多回答（1 个）

madhan ravi 2019-2-18

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/445609-how-to-calculate-sum-of-all-the-possible-combinations-of-two-vector-elements#answer_361589

在 MATLAB Online 中打开

C=reshape((A+B.')',[],1)'

7 个评论
显示 5更早的评论隐藏 5更早的评论

Andrei Bobrov 2019-2-20

+1

madhan ravi 2019-2-21

@Andrei Bobrov: Thank you!

请先登录，再进行评论。

请先登录，再回答此问题。

类别

MATLAB Programming

在 Help Center 和 File Exchange 中查找有关 Programming 的更多信息

标签

Community Treasure Hunt

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

Translated by

试用软件