in reply to Decimal to Scientific notation

You mean like this?

#!/usr/bin/perl

use warnings;
use strict;

my $dec = "0.99982928833";
my $sci = sprintf("%.11e", $dec);

print $sci;

[download]

-stevieb

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Re^2: Decimal to Scientific notation
by kepler (Scribe) on Mar 24, 2015 at 15:57 UTC
    Still doesn't work.... Is it my OS?
[reply]

      Hello kepler,

      In what way does it not work, and what is your OS? In the meantime, here is my guess: Did you perhaps miss the decimal point in stevieb’s solution?

       2:02 >perl -wE "my $dec = 0.99982928833; my $sci = sprintf qq[%11e], 
+$dec; say $sci;"
9.998293e-001

 2:03 >perl -wE "my $dec = 0.99982928833; my $sci = sprintf qq[%.11e],
+ $dec; say $sci;"
9.99829288330e-001

 2:03 >perl -v

This is perl 5, version 20, subversion 2 (v5.20.2) built for MSWin32-x
+64-multi-thread

      [download]

      (Windows 8.1, 64-bit, Strawberry Perl.)

      Hope that helps,

      Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

[reply]
[d/l]

        Hi Athanasius,

        Yes, you were right - I missed the decimal point. Sorry. Problem solved!

        Kind regards,

        Kepler

[reply]

      Copy/paste your exact code you currently have, along with the output.

      Knowing your OS and output of "perl -v" might help too.

      -stevieb

[reply]

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