Pity that eval is forbidden - I had quite an elegant solution using it.
Project Euler: Problem 5, Smallest multiple
Flip the main diagonal of a matrix
Whether the input is vector?
Calculate Euler's phi function
Determine the number of odd integers in a vector
Create incremental spiral WITHOUT USING EVAL or FEVAL
Insert certain elements into a vector.
Wayfinding 4 - Crossing, level 2
Convert a substructure reference string into a valid definition structure for subsref and subsasgn
Power supply: 230V to 115V
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