Function math::round::half_up [−] [src]

pub fn half_up(value: f64, scale: i8) -> f64

Round half up.

Round value to accuracy defined by scale rounding half up. Positive scale defines the number of decimal digits in the result while negative scale rounds to a whole number and defines the number of trailing zeroes in the result.

Arguments

  • value - value to round
  • scale - result accuracy

Examples

use math::round;

let rounded = round::half_up(3.14159, 3);
assert_eq!(rounded, 3.142);
use math::round;

let rounded = round::half_up(3456., -2);
assert_eq!(rounded, 3500.);