08-26-2008
Rounding floating point numbers?
Try Perl function "sprintf".
I'd say
#!/usr/bin/perl -w
# This will round the value of Y to two decimal points, using ".2f"
$Y=14.875;
$roundedY= sprintf "%.2f", $Y;
print "$roundedY \n";
exit;
For more details look at
sprintf - formatted print into a string
The same is in C and Korn in the man pages. I hope this helps.
Good luck
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LABS(3P) POSIX Programmer's Manual LABS(3P)
PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
labs, llabs - return a long integer absolute value
SYNOPSIS
#include <stdlib.h>
long labs(long i);
long long llabs(long long i);
DESCRIPTION
The labs() function shall compute the absolute value of the long integer operand i. The llabs() function shall compute the absolute value
of the long long integer operand i. If the result cannot be represented, the behavior is undefined.
RETURN VALUE
The labs() function shall return the absolute value of the long integer operand. The labs() function shall return the absolute value of the
long long integer operand.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
abs(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdlib.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
online at http://www.opengroup.org/unix/online.html .
IEEE
/The Open Group 2003 LABS(3P)