Su, Yu (Eugene) wrote:
> I expect
> print sprintf("%.0f %.0f %.0f %.0f %.0f %.0f %.0f %.0f %.0f %.0f", 0.5, 1.5,
> 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5);
> will give me
> 1 2 3 4 5 6 7 8 9 10
> but instead I get
> 0 2 2 4 4 6 6 8 8 10
>
> How to round a floating-point value to an integer value using (.5) up rule?
I'd add .5 in the next place down :
foreach (0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0) {
printf "%.1f => %.0f\n", $_, $_ + .05;
}
0.0 => 0
0.1 => 0
0.2 => 0
0.3 => 0
0.4 => 0
0.5 => 0
0.6 => 1
0.7 => 1
0.8 => 1
0.9 => 1
1.0 => 1
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