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).
Add two numbers
Replace NaNs with the number that appears to its left in the row.
Number of 1s in a binary string
Compress strings (not springs)
Create One Large Eye of size N x N Quickly?
Multiply a column by a row
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