would you get different output for all three if you used printf "%.10000g\n", unpack 'd', pack 'd', sqrt 2 ?

As is desirable, it's the same (and correct) output in all three cases: 
D:\>perl -le "printf '%.10000g', unpack 'd', pack 'd', sqrt 2;"
1.4142135623730951454746218587388284504413604736328125

[download]
which, incidentally, is exactly the value of the double precision representation of sqrt 2.

Cheers,
Rob

In reply to Re^8: Converting bytes to floats by syphilis
in thread Converting bytes to floats by Anonymous Monk

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