Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask
 
PerlMonks  

Re: Re: Re: (Golf) Formatting Integer To Money

by thelenm (Vicar)
on Aug 29, 2002 at 18:45 UTC ( [id://193853]=note: print w/replies, xml ) Need Help??


in reply to Re: Re: (Golf) Formatting Integer To Money
in thread (Golf) Formatting NumberTo Money

Here's a 44 with a few small improvements to yours:
sub a{$_=sprintf"%.2f",@_;1while s/\B...\D/,$&/;$_}
It seems that the sprintf solutions fail sometimes in rounding, e.g. "123456789012345.125" becomes "123,456,789,012,345.12" instead of "123,456,789,012,345.13".

Update: I was just informed by thospel++ that IEEE rounding is toward even, not upward. That explains the behavior, though I'm not sure if it's the desired behavior for this problem.

-- Mike

--
just,my${.02}

Replies are listed 'Best First'.
Re: Re: Re: Re: (Golf) Formatting Integer To Money
by larryk (Friar) on Aug 29, 2002 at 20:55 UTC
    Actually, this is the expected rounding. If you think about it, only half of them should round up (and the other half down) since that will give a more accurate average. In this case .125 rounds down, if you try .135 it will round up and .145 will round down.
       larryk                                          
    perl -le "s,,reverse killer,e,y,rifle,lycra,,print"
    

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://193853]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others imbibing at the Monastery: (2)
As of 2024-04-20 06:26 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found