This should be quite straightforward but at 2a.m. my brains are not working 100%. ;)
I has exactly the same idea!!
but on the second line I used directly the logical indexing... ;-)
Return the 3n+1 sequence for n
Matrix with different incremental runs
Replicate elements in vectors
Create incremental spiral WITHOUT USING EVAL or FEVAL
Bleed non-zeros to the right
Create a random logical vector of N elements of which M are true.
Number of problems
Convert a substructure reference string into a valid definition structure for subsref and subsasgn
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