What is this digit operation?
0 -> 0
1 -> 9
121 -> 9
44 -> 6
15 -> 5
1243 -> 7
Inner product of two vectors
Is it a number?
Length of a short side
Matlab Basics - y as a function of x
Expression or variable?
How many monitors are connected ?
Rank of magic square (for beginners)
Longest Collatz Sequence
Magic is simple (for beginners)
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