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C:\perl -le "printf '%a', 1.41421356237312;" 0x1.6a09e667f3c3dp+0 C:\>perl -le "printf '%a', 1.41421356237313;" 0x1.6a09e667f3c6ap+0
$ python3 -c "print(0.14)" 0.14 ... $ python3 -c "print(2 ** 0.5)" 1.4142135623730951