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Questions about the relation of (subfields of) computer science to the relevant mathematical foundations and their application.
1
vote
Is a zero matrix nilpotent matrix?
Sure, the zero matrix $0$ is nilpotent since any of its powers is again the zero matrix.
Just a side note: This question would be more suitable at the math stackexchange.
1
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A silly doubt on Computer Science Objects: Arrays, Lists, Strings, and Vectors, are they the...
The objects you mention are not the same.
In particular, lists and (mutable) strings are dynamic data structures whereas arrays are not; their size is fixed.
Now, whether some set of instances of data …