Raise elements of cell arrays in the power of 2

Question

gsourop 2016-11-18

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https://ww2.mathworks.cn/matlabcentral/answers/312944-raise-elements-of-cell-arrays-in-the-power-of-2

评论： Jay shankar Nanda 2021-3-29

采纳的回答： James Tursa

在 MATLAB Online 中打开

Hi everyone,

I have a cell array A of 2x100, where each element is a scalar and I want to raise in the power of 2. I have tried:

for k=1:2;
for t=1:100;
A2{k,t}=A{k,t}.^2;
end;
end;

But it doesn't work. Thanks in advance.

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Jay shankar Nanda 2021-3-29

how i CAn raise the power of an single element of the array

Jay shankar Nanda 2021-3-29

x={2,3,4};

>> x(2).^2

Undefined operator '.^' for input arguments of type 'cell'.

kindly tell how to access the input argumentand raise it to power

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Answer 1

James Tursa 2016-11-18

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/312944-raise-elements-of-cell-arrays-in-the-power-of-2#answer_243859

编辑：James Tursa 2016-11-18

在 MATLAB Online 中打开

Like this?

A = 2x100 cell array of scalars
A2 = mat2cell(cellfun(@(x)x.^2,A),ones(1,2),ones(1,100));

SIDE NOTE:

Your posts seem to indicate that you have a lot of scalar data in cell arrays that you want to do basic matrix arithmetic/functions with. Is there a reason you have this data in cell arrays rather than double matrices? It would be a lot easier (and cleaner) to maintain this data as double matrices in your code rather than in cell arrays unless you have some specific reason to have the cell arrays.