Passing the variable is fast or creating the variable new variable is fast?

2018 10 16

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Lets take an exapmle:

n=100; target to generate s=zeros(n,n);

should I pass this s or generate locally in the function?

I have to run the function, let say 10000 iteration

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madhan ravi 2018-10-16

编辑：madhan ravi 2018-10-16

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Passing the variable is better , see preallocation which enhances speed and efficiency

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