find the square root of a number in rust

To find the square root of a number in Rust, you can use the sqrt() method provided by the f64 type of the standard library's num module. Here's an example:

main.rs
use std::num::f64;

fn main() {
    let num = 16.0;
    let result = num.sqrt();
    println!("The square root of {} is {}", num, result);
}
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In this example, we first import the f64 type from the num module. Then, we define our num variable as the number we want to find the square root of.

Next, we calculate the square root of num using the sqrt() method provided by the f64 type, and store the result in the result variable. Finally, we print the result to the console.

Running this code will output: The square root of 16 is 4.