Function bigdecimalmath::root

pub fn root(n: isize, x: BigDecimal) -> Result<BigDecimal, BigDecimalMathError>

Calculates the n-th root of a BigDecimal rounded to the precision implied by x, x^(1/n).

Arguments

• n - the positive root
• x - the non-negative number we are calculating the n-th root of

Example

use bigdecimal::BigDecimal;
use std::str::FromStr;
use bigdecimalmath::root;

let n = 4;
let x = BigDecimal::from_str("14.75").unwrap();
assert_eq!(Ok(BigDecimal::from_str("1.9597").unwrap()), root(n,x));