Function significant_figures 

pub fn significant_figures<T: Real + Transcendental>(x: T, n: i32) -> T

Round x to n significant figures.

Examples

use mathverse_core::precision::significant_figures;

assert_eq!(significant_figures(0.00234567, 3), 0.00235);
assert_eq!(significant_figures(12345.0, 2), 12000.0);