matrix in test case 3 is magical?
sum first circle=73
sum second circle =61....
Get the area codes from a list of phone numbers
pressure to dB?
Make a run-length companion vector
Numbers spiral diagonals (Part 1)
Tony's trick for duplicating an mx1 vector n times
Is this number Munchhausen Narcissistic?
remove nans fast
provide the numerical answer to these number questions...
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