What is this digit operation?
0 -> 0
1 -> 9
121 -> 9
44 -> 6
15 -> 5
1243 -> 7
Determine whether a vector is monotonically increasing
Factorize THIS, buddy
vectorization in N
Back to basics 14 - Keywords
Area of an equilateral triangle
How to reverse spdiags ?
Magic is simple (for beginners)
Add more zeros
Numbers spiral diagonals (Part 2)
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