http://pi.physik.uni-bonn.de/~dieckman/InfProd/InfProd.html#InfinitexProducts for a hint
My solution is the longest, and I followed James' tip. My tip is that there is a MATLAB function (Elementary Math) that computes this value with one call (no loops are required).
Extract leading non-zero digit
Return the first and last characters of a character array
Getting the indices from a matrix
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Predicting life and death of a memory-less light bulb
Looking for Squares
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