C:\perl -le "printf '%a', 1.41421356237312;"
0x1.6a09e667f3c3dp+0
C:\>perl -le "printf '%a', 1.41421356237313;"
0x1.6a09e667f3c6ap+0

##</code><code>##

$ python3 -c "print(0.14)"
0.14

$ python3 -c "print(1.4 / 10)"
0.13999999999999999

$ python3 -c "print(2 ** 0.5)"
1.4142135623730951