Permute diagonal and antidiagonal
For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7]
WITHOUT diag function (and variable name)
"max(...)" is clever!
Encode Roman Numerals
Construct an index vector from two input vectors in vectorized fashion
Magic is simple (for beginners)
Clear all empty variables from the workspace
BLOCK x3 (Version 3)
Longest Collatz Sequence
Two functions (to be sure)
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