Oleksandr Denysenko, you get no credit for hacking the problem. Only legitimate solutions gain credit.
Persistence pays off! :-)
Summing Digits within Text
linear least squares fitting
Chebyshev polynomials of the 1st Kind
Rounding off numbers to n decimals
Divisible by 5
Back to basics: throwing errors / exceptions
Is input the global variable z?
Rate of event occurence: find percentiles of the distribution (for smallish rates)
Code breaker, Part II: Operation Orthos
Curve fitting (non-linear functions) & function handles
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