Count the number of occurrences of the second input in the first input
x1 = 12344455511; x2 =2; output = 1
x1 = 12344455511; x2 =1; output = 3
Back to basics 8 - Matrix Diagonals
Number of 1s in a binary string
03 - Matrix Variables 2
Replacing a row
Get all prime factors
Create tangent function out of sin and cos
Rotate matrix by -90 degrees
Upper Matrix in LU Decompositon
Combine the digits to output numbers
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