Trying to find a way to sprint out to 5 decimal places (not exponential) and if a number rounds up from the negative side to zero... well I want zero, NOT "negative zero".

I would hate to think there isn't a sprint-able answer to this. Otherwise, I'm off to making a very simple subroutine to look for some amount of precision and make positive if necessary.

I feel I've done all the necessary research, so chime in if it's not possible. perldoc.perl.org 's sprintf page is what's been guiding me, and after reading + tinkering; I'm giving up and asking the monks.

An example proggie to exemplify! 

print "print an example of negative zero\n";
@range = (-0.0000001, -0.000001, -0.00001, -0.0001);

foreach $example (@range)
{
    $tret = sprintf("rounded float:%7.5f, other:%7.5e",$example,$examp
+le);
    
    print "The Number $example is represented as $tret\n";
}

[download]
Output: 
print an example of negative zero
The Number -1e-07 is represented as rounded float:-0.00000, other:-1.0
+0000e-07
The Number -1e-06 is represented as rounded float:-0.00000, other:-1.0
+0000e-06
The Number -1e-05 is represented as rounded float:-0.00001, other:-1.0
+0000e-05
The Number -0.0001 is represented as rounded float:-0.00010, other:-1.
+00000e-04

[download]

In reply to Negative zero? There's gotta be a sprintf that undoes that, right? by rgiskard

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.