Given a number, return the number of closed 'circles' in the base 10 numerical representation.
Note: the number 4 has no circles
8819 -> 5
Interpolating on a string (the ASCII values) is an interesting idea even though the long interpolation string could be reduced by subtracting '0', but at the expense of a "longer" solution.
Read a Soroban Abacus
Convert a numerical matrix into a cell array of strings
03 - Matrix Variables 3
Narcissistic number ?
Sum of the Matrix Elements
Test if a Number is a Palindrome without using any String Operations
Pull the variable y_correct from the Caller's Workspace
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Next Lower Power of B
Number of 1s in the Binary Representation of a Number
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