MATLAB: If a variable has the dimension 1 x 1 is it a matrix, scalar, row or column vector

1x1matrixvertex

If a variable has the dimension 1 x 1 is it a matrix, scalar, row or column vector. I've tried finding a solution in the book but it doesnt really say.

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dpb and John are correct that the answer is "all of the above". There are functions you can use to check this (see the "Determine Size, Shape, and Order" section on that page) and each describes the criteria an array needs to satisfy for that array to be considered a matrix / scalar / row vector / column vector.

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MATLAB: How to multiply cell with a vector such that cell contains a matrix and each row is multiplied by different element of vector

It is not clear to me what you want to have happen to rows 3-5. Assuming it is similar to the other rows, does this do what you want?

C = cellfun(@(x)bsxfun(@times,x,B(:)),A,'uni',false);

MATLAB: A Matrix full of Arrays

Use cell arrays. E.g.,

myMatrix = {1:2,1:3,1:4};  % <-- 3-element cell array of row vectors, each a different length
myVector = myMatrix{1};  % <-- The first element of myMatrix extracted ... a 1x2 row vector
anotherVector = myMatrix{2};  % <-- the 1x3 row vector
etc.

Be sure to use the curly braces { } to build the cell array and to extract the vectors.

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Related Solutions

MATLAB: How to multiply cell with a vector such that cell contains a matrix and each row is multiplied by different element of vector

MATLAB: A Matrix full of Arrays

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