Rotate matrix (CounterClockwise) via 90, 180 or -90 depending on the input
Ex. a = [1 2 3;
4 5 6;
7 8 9]
b = 90;
output = [3 6 9;
2 5 8;
1 4 7]
Which doors are open?
Bottles of beer
First non-zero element in each column
Getting the absolute index from a matrix
Compute LOG(1+X) in natural log
Recursion at variable input
Upper Matrix in LU Decompositon
Get all prime factors
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