http://www.perlmonks.org?node_id=1049728


in reply to Printing a very small number

For a precise output:

use Math::BigRat;
my $num = Math::BigRat->new("9e-10");
print $num->as_float(), "\n";

[download]

Output: 0.0000000009

Replies are listed 'Best First'.
Re^2: Printing a very small number
by BrowserUk (Patriarch) on Aug 16, 2013 at 12:20 UTC
    For a precise output:

    That works if your small number starts out as a string, but if it comes from a calculation done using normal Perl math, the 'damage' has already been done.

    With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
    Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
    "Science is about questioning the status quo. Questioning authority".
    In the absence of evidence, opinion is indistinguishable from prejudice.
[reply]

In Section Seekers of Perl Wisdom