What is this digit operation?
0 -> 0
1 -> 9
121 -> 9
44 -> 6
15 -> 5
1243 -> 7
Find the numeric mean of the prime numbers in a matrix.
Filter AC, pass DC
Back to basics 25 - Valid variable names
Calculate the area of a triangle between three points
Chess ELO rating system
Without the French accent please!
How to reverse spdiags ?
BLOCK x3 (Version 1)
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