Hello,
The function sprintf does the rounding automatically. You don't need to add the 0.005.
From the sprintf manual:
f,F The double argument is rounded and
converted to decimal notation in the style -ddd.ddd,
where the number of digits after the decimal-point
character is equal to the precision specification.
Doing a small test reveals the same behavior in perl:
#!/usr/bin/perl -w
print `cat $0`;
for $i (1..10){
my $num = 0;
for(1..9800*$i){
$num += 0.0001/$i;
}
print "$num = ";
$num = sprintf("%.4f", $num);
print "$num\n";
}
0.979999999999908 = 0.9800
0.9799999999999 = 0.9800
0.979999999999902 = 0.9800
0.980000000000962 = 0.9800
0.980000000000699 = 0.9800
0.979999999999897 = 0.9800
0.980000000000605 = 0.9800
0.979999999999383 = 0.9800
0.979999999998648 = 0.9800
0.979999999998175 = 0.9800
Aziz,,,
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