Function float_split 

pub fn float_split(x: f64) -> (f64, f64)

(modf) Splits a floating-point number into an integer and a fractional part

Returns (integer, fractional) where:

integer + fractional = x

Notes

• This function is also known as modf in C/C++ and Go
• Both integer and fractional values will have the same sign as x

Special cases

• float_split(±Inf) = ±Inf, NaN
• float_split(NaN) = NaN, NaN

Examples

use russell_lab::math;

let (integer, fractional) = math::float_split(3.141593);
assert_eq!(
    format!("integer = {:?}, fractional = {:.6}", integer, fractional),
    "integer = 3.0, fractional = 0.141593"
);