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matlabvectorsum
Jack
Jack

Reputation: 155

Adding a row vector and a column vector

I need to add two variables which have different dimensions in MATLAB.

A has dimensions 1*60

B has dimensions 60*1

Since the matrix dimensions are not same, I cannot sum them by using the sum command. I would like to ask if there is any way to add them?

Upvotes: 1

Views: 1447

Answers (1)

Wolfie
Wolfie

Reputation: 30046

Using the transpose function .' or the colon operator (:)

Do not include these two lines of code, they are just set-up for this example:

A = ones(1, 60);  % create an arbitrary row vector 1x60
B = ones(60, 1);  % create an arbitrary column vector 60x1

Choose one of these options, a comment above each describes what it does.

% output a vector the same orientation as A
C = A + B.';

% output a vector the same orientation as B
C = A.' + B;

% output a column vector, no matter the orientation of A and B 
% Ensure that they are vectors, this will give undesired results if A and B are 2D.
C = A(:) + B(:);

Upvotes: 3

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