I want to format a real number to 2.4f format. This is simple one would say just use $n=sprintf("%2.4f",$n); , where $n is the number to be rounded. However when I do this I get a number like 23.4600 or 23.0000, which is indeed %2.4f format but I want to eliminate the trailing zeros and decimal where needed resulting in 23.46 and 23

This is a chunk of the code that does it:

$n=sprintf("%2.4f",$n);
$n =~ s/0+$//;
$n =~ s/\.$//;
[download]

This does work just fine, however I would like to find away to do the substitution by combining the these 2 separate substitutions into 1 more eloquant one (single line).... or perhaps an even better way to do it all together. Thank you for your help.

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.