>>> len("3.141592653589793") - 1 16 >> math.log(2**51) / math.log(10) 15.35252977886304 The precision of pi used by NASA is suspiciously close the precis

>>> len("3.141592653589793") - 1 16 >> math.log(2**51) / math.log(10) 15.35252977886304 The precision of pi used by NASA is suspiciously close the precision limit of IEEE 64-bit floating point integers, a reason which is not given the article :). Interesting nonetheless. edit: formatting