Need help to make a for loop

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Ibrahim Mahmood Shah
评论： Stephen23 2017-3-6
I got a K (5x5) matrix all zeros K1 (3x3) is associated with 1,2,3 K2 (3x3) is associated with 3,4,5
I Need to add K1 and K2 in a for loop to make a 5x5 matrix
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Stephen23
Stephen23 2017-3-6
Read these:
https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval
https://www.mathworks.com/help/matlab/matlab_prog/string-evaluation.html
And this quote from the MATLAB documentation: "A frequent use of the eval function is to create sets of variables such as A1, A2, ..., An, but this approach does not use the array processing power of MATLAB and is not recommended"
Then use indexing instead of dynamic variable names: indexing is simple, fast, efficient, and much less buggy.

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