How we can do the matrix and vector in vector form?

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Vims 2023-12-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2060104-how-we-can-do-the-matrix-and-vector-in-vector-form

编辑： Dyuman Joshi 2023-12-13

Untitled (Draft).pdf

clc;
clear all ;
 close all;
 format long g;
 %% developing the function for the reverse in the vector concate and reverse it
 A = [1;2;3]
 B = [4 5 6;8 9 11]
[numRows,numCols] = size(B)
 %% new vector will be vector form 
 C = vertcat(A,[B])

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Vims 2023-12-13

Untitled (Draft).pdf

I need answer in the vector form as it shown in image attached.

Vims 2023-12-13

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回答（3 个）

madhan ravi 2023-12-13

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https://ww2.mathworks.cn/matlabcentral/answers/2060104-how-we-can-do-the-matrix-and-vector-in-vector-form#answer_1370694

在 MATLAB Online 中打开

[A, B.'] %?

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madhan ravi 2023-12-13

在 MATLAB Online 中打开

Wanted = [A; reshape(B.', [], 1)

Vims 2023-12-13

I want function which also do the reverse. As the same format B was earlier. This is the another function. I think we have to use

[numRows,numCols] = size(B)

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madhan ravi 2023-12-13

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2060104-how-we-can-do-the-matrix-and-vector-in-vector-form#answer_1370709

在 MATLAB Online 中打开

 B = B.';
 Wanted = [A; B(:)]

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Vims 2023-12-13

correct but in reverse as same format or size. This is main part.

[numRows,numCols] = size(B)

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Dyuman Joshi 2023-12-13

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2060104-how-we-can-do-the-matrix-and-vector-in-vector-form#answer_1370714

在 MATLAB Online 中打开

I've demonstrated 2 methods here using reshape and colon, : . Refer to the documentation pages linked for more info.

Note that using semi-colon to concatenate is equivalent to vertcat.

A = [1;2;3];
B = [4 5 6;8 9 11];
%Method 1
C1 = [A; reshape(B.',[],1)]
C1 = 9×1
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    11
%Method 2
B = B.';
C2 = [A; B(:)]
C2 = 9×1
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    11