Function ceil 

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

Round up.

Round value up to accuracy defined by scale. 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::ceil(3.14159, 3);
assert_eq!(rounded, 3.142);

use math::round;

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