#!/usr/bin/perl

my $declon = -88.9999999999999999999;
my $declat = 44.1111111111111111111;

print($declon, "\n");  # -89
print($declat, "\n");  # 44.1111111111111

my @lon = split(/\./, $declon);
my @lat = split(/\./, $declat);

$lon[1] = substr($lon[1], 0, 6);
$lat[1] = substr($lat[1], 0, 6);

my $lat = join('.', @lat);
my $lon = join('.', @lon);

print "$lat\n";
print "$lon";

##</code><code>##

# Round (.5 rounds up)
$num = int($num * 1000000 + 0.5) / 1000000;

##</code><code>##

# Truncate towards 0.
$num = int($num * 1000000) / 1000000;

##</code><code>##

$lon = sprintf('%.6f', $declon);
$lat = sprintf('%.6f', $declat);

##</code><code>##

#!/usr/bin/perl

use strict;
use warnings;

my $declon = -88.9999999999999999999;
my $declat = 44.1111111111111111111;

my $lon = int($declon * 1000000 + 0.5) / 1000000;
my $lat = int($declat * 1000000 + 0.5) / 1000000;

printf("%.6f\n", $lon);  # -88.999999
printf("%.6f\n", $lat);  # 44.111111

##</code><code>##

#!/usr/bin/perl

use strict;
use warnings;

my $declon = -88.9999999999999999999;
my $declat = 44.1111111111111111111;

printf("$declon\n");   # -89
printf("$declat\n");   # 44.1111111111111

printf("%.6f\n", $declon);   # -89.000000
printf("%.6f\n", $declat);   # 44.111111