I'd still be inclined to write 

c:\@Work\Perl>perl -wMstrict -le
"printf qq{%.11e\n}, $_ for 0.99982928833, 0.99982928832;
"
9.99829288330e-001
9.99829288320e-001

[download]
instead ;-)

Give a man a fish:  <%-(-(-(-<

In reply to Re^4: Decimal to Scientific notation by AnomalousMonk
in thread Decimal to Scientific notation by kepler

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